Improved: template.css (colors) (#4641)

* font colors

* html, body color: moved to the themes

* finished font-color

* background-colors

* fix scrollbar-colors

* background colors modal/darken-hover

* background-color

* loading image

* template-background-color-transparent

* background-colors (inkl. modal background)

* box-shadow

* fix:: toggle_aside:hover

* background-color

* border-color

* rgba -> #

* improvements

* RTL.css

21 files changed, 267 insertions, 162 deletions

diff --git a/p/themes/Ansum/ansum.css b/p/themes/Ansum/ansum.css
index e241efcf5..c04a16937 100644
--- a/p/themes/Ansum/ansum.css
+++ b/p/themes/Ansum/ansum.css
@@ -1346,6 +1346,7 @@ main.prompt {
 /*============*/
 html, body {
 	background: #f5f0ec;
+	color: #161a38;
 	font-family: "lato", "Helvetica", "Arial", sans-serif;
 	font-size: 0.875rem;
 }
diff --git a/p/themes/Ansum/ansum.rtl.css b/p/themes/Ansum/ansum.rtl.css
index 842ab4d93..623897993 100644
--- a/p/themes/Ansum/ansum.rtl.css
+++ b/p/themes/Ansum/ansum.rtl.css
@@ -1346,6 +1346,7 @@ main.prompt {
 /*============*/
 html, body {
 	background: #f5f0ec;
+	color: #161a38;
 	font-family: "lato", "Helvetica", "Arial", sans-serif;
 	font-size: 0.875rem;
 }
diff --git a/p/themes/Ansum/ansum.scss b/p/themes/Ansum/ansum.scss
index 5457b15aa..b850bf2b4 100644
--- a/p/themes/Ansum/ansum.scss
+++ b/p/themes/Ansum/ansum.scss
@@ -36,6 +36,7 @@
 /*============*/
 html, body {
 	background: variables.$grey-light;
+	color: variables.$unread-font-color;
 	font-family: "lato", "Helvetica", "Arial", sans-serif;
 	font-size: 0.875rem;
 }
diff --git a/p/themes/BlueLagoon/BlueLagoon.css b/p/themes/BlueLagoon/BlueLagoon.css
index 1c6093f3b..4f290c97c 100644
--- a/p/themes/BlueLagoon/BlueLagoon.css
+++ b/p/themes/BlueLagoon/BlueLagoon.css
@@ -4,6 +4,7 @@
 /*============*/
 html, body {
 	background: #fafafa;
+	color: black;
 	font-family: "OpenSans", "Cantarell", "Helvetica", "Arial", "PingFang SC", "Microsoft YaHei", sans-serif;
 	font-size: 92%;
 }
diff --git a/p/themes/BlueLagoon/BlueLagoon.rtl.css b/p/themes/BlueLagoon/BlueLagoon.rtl.css
index 18b5607cf..247b20aac 100644
--- a/p/themes/BlueLagoon/BlueLagoon.rtl.css
+++ b/p/themes/BlueLagoon/BlueLagoon.rtl.css
@@ -4,6 +4,7 @@
 /*============*/
 html, body {
 	background: #fafafa;
+	color: black;
 	font-family: "OpenSans", "Cantarell", "Helvetica", "Arial", "PingFang SC", "Microsoft YaHei", sans-serif;
 	font-size: 92%;
 }
diff --git a/p/themes/Flat/flat.css b/p/themes/Flat/flat.css
index 275f810ee..d7541f99f 100644
--- a/p/themes/Flat/flat.css
+++ b/p/themes/Flat/flat.css
@@ -4,6 +4,7 @@
 /*============*/
 html, body {
 	background: #fafafa;
+	color: black;
 	font-family: "OpenSans", "Cantarell", "Helvetica", "Arial", "PingFang SC", "Microsoft YaHei", sans-serif;
 }
 
diff --git a/p/themes/Flat/flat.rtl.css b/p/themes/Flat/flat.rtl.css
index 3f531d578..0cf0dbdc1 100644
--- a/p/themes/Flat/flat.rtl.css
+++ b/p/themes/Flat/flat.rtl.css
@@ -4,6 +4,7 @@
 /*============*/
 html, body {
 	background: #fafafa;
+	color: black;
 	font-family: "OpenSans", "Cantarell", "Helvetica", "Arial", "PingFang SC", "Microsoft YaHei", sans-serif;
 }
 
diff --git a/p/themes/Mapco/mapco.css b/p/themes/Mapco/mapco.css
index 25d9fa0b2..6ecb32b00 100644
--- a/p/themes/Mapco/mapco.css
+++ b/p/themes/Mapco/mapco.css
@@ -1377,6 +1377,7 @@ main.prompt {
 /*============*/
 html, body {
 	background: #eff0f2;
+	color: #36c;
 	font-family: "lato", "Helvetica", "Arial", sans-serif;
 	font-size: 0.875rem;
 }
diff --git a/p/themes/Mapco/mapco.rtl.css b/p/themes/Mapco/mapco.rtl.css
index 39f9cba68..7335484be 100644
--- a/p/themes/Mapco/mapco.rtl.css
+++ b/p/themes/Mapco/mapco.rtl.css
@@ -1377,6 +1377,7 @@ main.prompt {
 /*============*/
 html, body {
 	background: #eff0f2;
+	color: #36c;
 	font-family: "lato", "Helvetica", "Arial", sans-serif;
 	font-size: 0.875rem;
 }
diff --git a/p/themes/Mapco/mapco.scss b/p/themes/Mapco/mapco.scss
index 5457b15aa..b850bf2b4 100644
--- a/p/themes/Mapco/mapco.scss
+++ b/p/themes/Mapco/mapco.scss
@@ -36,6 +36,7 @@
 /*============*/
 html, body {
 	background: variables.$grey-light;
+	color: variables.$unread-font-color;
 	font-family: "lato", "Helvetica", "Arial", sans-serif;
 	font-size: 0.875rem;
 }
diff --git a/p/themes/Origine/origine.css b/p/themes/Origine/origine.css
index 31ab79391..f34bfd7c1 100644
--- a/p/themes/Origine/origine.css
+++ b/p/themes/Origine/origine.css
@@ -4,6 +4,7 @@
 /*============*/
 html, body {
 	background: #fafafa;
+	color: black;
 	font-family: "OpenSans", "Cantarell", "Helvetica", "Arial", "PingFang SC", "Microsoft YaHei", sans-serif;
 }
 
diff --git a/p/themes/Origine/origine.rtl.css b/p/themes/Origine/origine.rtl.css
index fa0e97a0f..da071f80d 100644
--- a/p/themes/Origine/origine.rtl.css
+++ b/p/themes/Origine/origine.rtl.css
@@ -4,6 +4,7 @@
 /*============*/
 html, body {
 	background: #fafafa;
+	color: black;
 	font-family: "OpenSans", "Cantarell", "Helvetica", "Arial", "PingFang SC", "Microsoft YaHei", sans-serif;
 }
 
diff --git a/p/themes/Screwdriver/screwdriver.css b/p/themes/Screwdriver/screwdriver.css
index 5e546f5ad..6473a1329 100644
--- a/p/themes/Screwdriver/screwdriver.css
+++ b/p/themes/Screwdriver/screwdriver.css
@@ -4,6 +4,7 @@
 /*============*/
 html, body {
 	background: #fafafa;
+	color: black;
 	font-family: "OpenSans", "Cantarell", "Helvetica", "Arial", "PingFang SC", "Microsoft YaHei", sans-serif;
 	font-size: 92%;
 }
diff --git a/p/themes/Screwdriver/screwdriver.rtl.css b/p/themes/Screwdriver/screwdriver.rtl.css
index e86209fd8..d87523ec2 100644
--- a/p/themes/Screwdriver/screwdriver.rtl.css
+++ b/p/themes/Screwdriver/screwdriver.rtl.css
@@ -4,6 +4,7 @@
 /*============*/
 html, body {
 	background: #fafafa;
+	color: black;
 	font-family: "OpenSans", "Cantarell", "Helvetica", "Arial", "PingFang SC", "Microsoft YaHei", sans-serif;
 	font-size: 92%;
 }
diff --git a/p/themes/Swage/swage.css b/p/themes/Swage/swage.css
index 719df2b15..b25d980ae 100644
--- a/p/themes/Swage/swage.css
+++ b/p/themes/Swage/swage.css
@@ -46,6 +46,7 @@ select:invalid {
 
 html,
 body {
+	color: black;
 	font-family: Helvetica, Arial, sans-serif;
 }
 
diff --git a/p/themes/Swage/swage.rtl.css b/p/themes/Swage/swage.rtl.css
index 4a75aeddf..6497de09b 100644
--- a/p/themes/Swage/swage.rtl.css
+++ b/p/themes/Swage/swage.rtl.css
@@ -46,6 +46,7 @@ select:invalid {
 
 html,
 body {
+	color: black;
 	font-family: Helvetica, Arial, sans-serif;
 }
 
diff --git a/p/themes/Swage/swage.scss b/p/themes/Swage/swage.scss
index 68963f7db..420de3a14 100644
--- a/p/themes/Swage/swage.scss
+++ b/p/themes/Swage/swage.scss
@@ -60,6 +60,7 @@ $color_hover:	#fff;
 // /@extend-elements
 html,
 body {
+	color: black;
 	font-family: Helvetica, Arial, sans-serif;
 }
 
diff --git a/p/themes/base-theme/base.css b/p/themes/base-theme/base.css
index 8321abfc6..5edf0257e 100644
--- a/p/themes/base-theme/base.css
+++ b/p/themes/base-theme/base.css
@@ -6,11 +6,13 @@
 /*============*/
 html, body {
 	height: 100%;
+	color: black;
 	font-family: "OpenSans", "Cantarell", "Helvetica", "Arial", "PingFang SC", "Microsoft YaHei", sans-serif;
 }
 
 /*=== Links */
 a, button.as-link {
+	color: blue;
 	outline: none;
 }
 
diff --git a/p/themes/base-theme/base.rtl.css b/p/themes/base-theme/base.rtl.css
index e48222bdd..8ef5e2a21 100644
--- a/p/themes/base-theme/base.rtl.css
+++ b/p/themes/base-theme/base.rtl.css
@@ -6,11 +6,13 @@
 /*============*/
 html, body {
 	height: 100%;
+	color: black;
 	font-family: "OpenSans", "Cantarell", "Helvetica", "Arial", "PingFang SC", "Microsoft YaHei", sans-serif;
 }
 
 /*=== Links */
 a, button.as-link {
+	color: blue;
 	outline: none;
 }
 
diff --git a/p/themes/base-theme/template.css b/p/themes/base-theme/template.css
index 463db875c..08c5623ac 100644
--- a/p/themes/base-theme/template.css
+++ b/p/themes/base-theme/template.css
@@ -2,6 +2,42 @@
 
 /*=== GENERAL */
 /*============*/
+:root {
+	--template-font-color-dark: #000;
+	--template-font-color-grey-dark: #666;
+	--template-font-color-grey-light: #aaa;
+	--template-font-color-light: #fff;
+	--template-background-color-error-transparent: #ff000040;
+	--template-font-color-error: #f00;
+
+	--template-background-color: #fff;
+	--template-background-color-transparent: #ffffff7f;
+	--template-background-color-middle: #eee;
+	--template-background-color-dark: #ccc;
+
+	--template-border-color: #999;
+	--template-border-color-error: #f00;
+
+	--template-switch-accent-color: #85d885;
+
+	--template-dragdrop-color: #ff0;
+	--template-dragdrop-color-transparent: #ff02;
+
+	--template-noThumbnailImage-background-color: #ddd;
+
+	--template-darken-background-hover-transparent: #6662;
+
+	--template-modal-background-color-transparent: #0007;
+
+	--template-box-shadow-color-transparent: #0003;
+
+	--template-scrollbar-handle: #0002;
+	--template-scrollbar-handle-hover: #0005;
+	--template-scrollbar-track: #0001;
+	--template-scrollbar-track-hover: #0001;
+
+	--template-loading-image: url("loader.gif");
+}
 
 @font-face {
 	font-family: 'OpenSans';
@@ -15,9 +51,8 @@
 html, body {
 	margin: 0;
 	padding: 0;
-	background: white;
+	background-color: var(--template-background-color);
 	height: 100%;
-	color: black;
 	font-family: "OpenSans", "Cantarell", "Helvetica", "Arial", sans-serif;
 	font-size: 100%;
 }
@@ -88,11 +123,11 @@ sup {
 }
 
 kbd {
-	background-color: #eee;
+	background-color: var(--template-background-color-middle);
 	padding: 2px 4px 2px 24px;
 	display: inline-block;
-	color: #333;
-	border: 1px solid #b4b4b4;
+	color: var(--template-font-color-grey-dark);
+	border: 1px solid var(--template-border-color);
 	border-radius: 3px;
 	text-indent: -20px;
 	white-space: pre-wrap;
@@ -211,7 +246,7 @@ textarea[rows="2"] {
 }
 
 textarea:invalid {
-	border: 2px dashed red;
+	border: 2px dashed var(--template-border-color-error);
 }
 
 .prompt textarea,
@@ -227,9 +262,9 @@ input:disabled,
 select:disabled {
 	background-color: transparent;
 	min-width: 75px;
-	color: lightgray;
+	color: var(--template-font-color-grey-light);
 	font-style: italic;
-	border: 1px dashed lightgray;
+	border: 1px dashed var(--template-border-color);
 }
 
 input[type="radio"],
@@ -282,7 +317,7 @@ button.as-link:active {
 }
 
 button.as-link[disabled] {
-	color: #ddd !important;
+	color: var(--template-font-color-grey-light) !important;
 }
 
 /*=== Tables */
@@ -420,7 +455,7 @@ a.btn {
 	height: 1.75em;
 	border: 0;
 	border-radius: 1em;
-	background-color: #ccc;
+	background-color: var(--template-background-color-dark);
 	cursor: pointer;
 	box-sizing: content-box;
 	background-repeat: no-repeat;
@@ -436,7 +471,7 @@ a.btn {
 }
 
 .switch.active {
-	background-color: rgb(133, 216, 133);
+	background-color: var(--template-switch-accent-color);
 	background-repeat: no-repeat;
 	background-position: center center;
 	background-image: url('../icons/enabled.svg');
@@ -467,7 +502,7 @@ a.btn {
 	top: 0.2em;
 	width: 1.5em;
 	height: 1.5em;
-	background-color: #fff;
+	background-color: var(--template-background-color);
 	background-image: url('../icons/disabled.svg');
 	background-repeat: no-repeat;
 	background-position: center center;
@@ -476,7 +511,7 @@ a.btn {
 }
 
 .switch:not([disabled]):hover::before {
-	background-color: #eee;
+	background-color: var(--template-background-color-middle);
 }
 
 .switch.active::before {
@@ -509,7 +544,7 @@ a.btn {
 
 .btn:focus-visible,
 input[type="checkbox"]:focus-visible {
-	outline: 2px solid #ccc;
+	outline: 2px solid var(--template-border-color);
 }
 
 /*=== Navigation */
@@ -579,9 +614,9 @@ input[type="checkbox"]:focus-visible {
 
 .dropdown-menu {
 	margin: 0;
-	background: #fff;
+	background-color: var(--template-background-color);
 	display: none;
-	border: 1px solid #aaa;
+	border: 1px solid var(--template-border-color);
 	min-width: 200px;
 	position: absolute;
 	right: 0;
@@ -593,6 +628,7 @@ input[type="checkbox"]:focus-visible {
 	height: 10px;
 	border-width: 1px 0 0 1px;
 	border-style: solid;
+	border-color: var(--template-border-color);
 	content: "";
 	position: absolute;
 	top: -6px;
@@ -660,7 +696,7 @@ input[type="checkbox"]:focus-visible {
 .separator {
 	display: block;
 	height: 0;
-	border-bottom: 1px solid #aaa;
+	border-bottom: 1px solid var(--template-border-color);
 }
 
 /*=== Alerts */
@@ -705,7 +741,7 @@ input[type="checkbox"]:focus-visible {
 	margin: 0 0 5em;
 	padding: 1em 0;
 	width: 100%;
-	border-top: 1px solid #aaa;
+	border-top: 1px solid var(--template-border-color);
 	text-align: center;
 }
 
@@ -756,7 +792,6 @@ input[type="checkbox"]:focus-visible {
 	display: inline-block;
 	max-width: 95%;
 	width: 20rem;
-	border: 1px solid #ccc;
 	vertical-align: top;
 }
 
@@ -815,7 +850,7 @@ input[type="checkbox"]:focus-visible {
 }
 
 .dragging {
-	background-color: rgba(255, 255, 0, 0.7);
+	background-color: var(--template-dragdrop-color)
 }
 
 .dragging .icon {
@@ -827,17 +862,17 @@ input[type="checkbox"]:focus-visible {
 }
 
 .drag-active .drop-zone:not(.drag-disallowed) {
-	background: repeating-linear-gradient(45deg, transparent, transparent 40px, rgba(250,250,210, 0.7) 40px, rgba(250,250,210, 0.7) 60px);
+	background: repeating-linear-gradient(45deg, transparent, transparent 40px, var(--template-dragdrop-color-transparent) 40px, var(--template-dragdrop-color-transparent) 60px);
 }
 
 .drag-active .drag-hover.drop-zone {
-	background: rgba(250,250,210, 0.7);
+	background-color: var(--template-dragdrop-color-transparent);
 	transition: background 0.5s;
 }
 
 li.drag-hover {
 	margin: 0 0 5px;
-	border-bottom: 2px solid #ccc;
+	border-bottom: 2px solid var(--template-border-color);
 }
 
 .drag-drop {
@@ -847,11 +882,11 @@ li.drag-hover {
 
 @keyframes droppedKeyframe {
 	0% {
-		background-color: rgba(250,250,210, 0.7);
+		background-color: var(--template-dragdrop-color-transparent);
 	}
 
 	50% {
-		background-color: yellow;
+		background-color: var(--template-dragdrop-color);
 	}
 
 	100% {
@@ -864,33 +899,38 @@ li.drag-hover {
 @supports (scrollbar-width: thin) {
 	#sidebar,
 	.scrollbar-thin {
-		scrollbar-color: rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.05);
+		scrollbar-color: var(--template-scrollbar-handle) var(--template-scrollbar-track);
 		scrollbar-width: thin;
 	}
 
 	#sidebar:hover,
 	.scrollbar-thin:hover {
-		scrollbar-color: rgba(0, 0, 0, 0.3) rgba(0, 0, 0, 0.05);
+		scrollbar-color: var(--template-scrollbar-handle-hover) var(--template-scrollbar-track-hover);
 	}
 }
 
 @supports not (scrollbar-width: thin) {
 	#sidebar::-webkit-scrollbar,
 	.scrollbar-thin::-webkit-scrollbar {
-		background: rgba(0, 0, 0, 0.05);
+		background-color: var(--template-scrollbar-track);
 		width: 8px;
 	}
 
+	#sidebar:hover::-webkit-scrollbar,
+	.scrollbar-thin:hover::-webkit-scrollbar {
+		background-color: var(--template-scrollbar-track-hover);
+	}
+
 	#sidebar::-webkit-scrollbar-thumb,
 	.scrollbar-thin::-webkit-scrollbar-thumb {
-		background: rgba(0, 0, 0, 0.1);
+		background-color: var(--template-scrollbar-handle);
 		display: unset;
 		border-radius: 5px;
 	}
 
 	#sidebar:hover::-webkit-scrollbar-thumb,
-	.scrollbar-thin::-webkit-scrollbar-thumb {
-		background: rgba(0, 0, 0, 0.3);
+	.scrollbar-thin:hover::-webkit-scrollbar-thumb {
+		background-color: var(--template-scrollbar-handle-hover);
 	}
 }
 
@@ -1045,6 +1085,13 @@ input[type="search"] {
 	visibility: visible;
 }
 
+.aside .toggle_aside:hover,
+#panel .close:hover,
+#slider .toggle_aside:hover,
+.dropdown-menu .toggle_aside:hover {
+	background-color: var(--template-darken-background-hover-transparent);
+}
+
 /*=== New article notification */
 #new-article {
 	display: none;
@@ -1101,7 +1148,7 @@ a.website:hover .favicon {
 }
 
 .flux:not(.current):hover .item.title {
-	background: #fff;
+	background-color: var(--template-background-color);
 	max-width: calc(100% - 320px);
 	position: absolute;
 }
@@ -1111,7 +1158,7 @@ a.website:hover .favicon {
 }
 
 .flux .item.title a {
-	color: #000;
+	color: var(--template-font-color-dark);
 	text-decoration: none;
 }
 
@@ -1150,7 +1197,7 @@ a.website:hover .favicon {
 }
 
 .flux .item.thumbnail img {
-	background: repeating-linear-gradient( -45deg, #ddd, #ddd 5px, transparent 5px, transparent 10px );
+	background: repeating-linear-gradient( -45deg, var(--template-noThumbnailImage-background-color), var(--template-noThumbnailImage-background-color) 5px, transparent 5px, transparent 10px );
 	display: inline-block;
 	width: 100%;
 	height: 100%;
@@ -1160,7 +1207,7 @@ a.website:hover .favicon {
 
 .flux .item.title .summary {
 	max-height: 3em;
-	color: #666;
+	color: var(--template-font-color-grey-dark);
 	font-size: 0.9em;
 	line-height: 1.5em;
 	font-weight: normal;
@@ -1171,7 +1218,7 @@ a.website:hover .favicon {
 
 .flux .item.title .author {
 	padding-left: 1rem;
-	color: #555;
+	color: var(--template-font-color-grey-dark);
 	font-size: .9rem;
 	font-weight: normal;
 }
@@ -1229,14 +1276,14 @@ a.website:hover .favicon {
 
 .content > header,
 .content > footer {
-	color: #666;
+	color: var(--template-font-color-grey-light);
 	font-size: .9rem;
 }
 
 .content > footer {
 	margin: 2rem 0 2rem;
 	padding-top: 1rem;
-	border-top: 2px solid #ccc;
+	border-top: 2px solid var(--template-border-color);
 	clear: both;
 }
 
@@ -1309,8 +1356,8 @@ br {
 	top: 1em;
 	left: 25%; right: 25%;
 	z-index: 9999;
-	background: #fff;
-	border: 1px solid #aaa;
+	background-color: var(--template-background-color);
+	border: 1px solid var(--template-border-color);
 	opacity: 1;
 	line-height: 2;
 	visibility: visible;
@@ -1330,7 +1377,7 @@ br {
 }
 
 .notification a.close:hover {
-	background: rgba(10,10,10,0.05);
+	background-color: var(--template-darken-background-hover-transparent);
 }
 
 .notification a.close:hover .icon {
@@ -1360,8 +1407,7 @@ br {
 	width: 100%;
 	height: 100%;
 	overflow: auto;
-	background-color: #eee;
-	background-color: rgba(0,0,0,0.4);
+	background-color: var(--template-modal-background-color-transparent);
 }
 
 #popup-content {
@@ -1370,9 +1416,9 @@ br {
 	width: 80%;
 	height: 80%;
 	overflow: hidden;
-	background-color: #fafafa;
+	background-color: var(--template-background-color);
 	border-radius: .25rem;
-	box-shadow: 0 0 1px #737373, 1px 2px 3px #4a4a4f;
+	box-shadow: 3px 3px 5px var(--template-box-shadow-color-transparent);
 }
 
 .popup-row {
@@ -1385,14 +1431,14 @@ br {
 	width: 27px;
 	height: 27px;
 	padding-bottom: 5px;
-	color: #aaa;
+	color: var(--template-font-color-grey-light);
 	font-size: 28px;
 	font-weight: bold;
 }
 
 #popup-close:hover,
 #popup-close:focus {
-	color: #000;
+	color: var(--template-font-color-dark);
 	text-decoration: none;
 	cursor: pointer;
 }
@@ -1414,7 +1460,6 @@ br {
 
 /*=== Navigation menu (for articles) */
 #nav_entries {
-	background: #fff;
 	display: table;
 	position: fixed;
 	bottom: 0; left: 0;
@@ -1444,12 +1489,12 @@ br {
 #load_more.loading,
 #load_more.loading:hover {
 	padding: 10px 20px;
-	background: url("loader.gif") center center no-repeat #fff;
+	background: var(--template-loading-image) center center no-repeat var(--template-background-color);
 	font-size: 0;
 }
 
 .loading {
-	background: url("loader.gif") center center no-repeat;
+	background: var(--template-loading-image) center center no-repeat;
 	font-size: 0;
 }
 
@@ -1516,7 +1561,7 @@ br {
 	position: fixed;
 	top: 0; bottom: 0;
 	left: 0; right: 0;
-	background: rgba(0, 0, 0, 0.5);
+	background-color: var(--template-modal-background-color-transparent);
 	opacity: 0;
 	transition: visibility .3s, opacity .3s;
 	visibility: hidden;
@@ -1528,7 +1573,7 @@ br {
 }
 
 #panel {
-	background: #fff;
+	background-color: var(--template-background-color);
 	display: none;
 	position: fixed;
 	top: 2%; bottom: 2%;
@@ -1549,18 +1594,18 @@ br {
 
 /*=== Slider */
 #slider {
-	background: #fff;
+	background-color: var(--template-background-color);
 	width: 0;
 	position: fixed;
 	top: 0; bottom: 0;
 	right: 0;
 	overflow: auto;
-	border-left: 1px solid #aaa;
 	z-index: 100;
 }
 
 #slider.active:target {
 	width: 750px;
+	box-shadow: -3px 3px 5px var(--template-box-shadow-color-transparent);
 }
 
 #slider.sliding {
@@ -1575,7 +1620,7 @@ br {
 }
 
 #slider.active:target + #close-slider {
-	background: rgba(0, 0, 0, 0.2);
+	background-color: var(--template-modal-background-color-transparent);
 	font-size: 0;
 	left: 0;
 	z-index: 99;
@@ -1608,7 +1653,7 @@ br {
 	display: block;
 	max-width: 640px;
 	height: 320px;
-	border: 1px solid #aaa;
+	border: 1px solid var(--template-border-color);
 	position: relative;
 	min-width: 260px;
 	margin-bottom: 30px;
@@ -1643,7 +1688,7 @@ br {
 	display: none;
 	width: 65px;
 	height: 100%;
-	color: #fff;
+	color: var(--template-font-color-light);
 	font-family: "Varela Round", sans-serif;
 	font-size: 1000%;
 	position: absolute;
@@ -1653,20 +1698,20 @@ br {
 	transition: opacity .2s;
 	text-align: center;
 	line-height: 225%;
-	background-color: rgba(255, 255, 255, .3);
+	background-color: var(--template-background-color-transparent);
 	text-shadow: 0px 0px 15px rgb(119, 119, 119);
 }
 
 .properties {
 	padding: 5px;
-	background: rgba(255, 255, 255, 0.7);
+	background-color: var(--template-background-color-transparent);
 	display: none;
-	color: #000;
-	border-top: 1px solid #aaa;
+	border-top: 1px solid var(--template-border-color);
 	bottom: 0;
 	left: 0; right: 0;
 	position: absolute;
 	z-index: 10;
+	backdrop-filter: blur(3px);
 }
 
 .properties .page-number {
@@ -1708,18 +1753,18 @@ input:checked + .slide-container .properties {
 }
 
 .log-item.log-error {
-	background-color: #bd362f44;
+	background-color: var(--template-background-color-error-transparent);
 }
 
 .item.share.error a::after,
 .category .title.error::before,
 .item.feed.error .item-title::before {
 	content: " ⚠ ";
-	color: #bd362f;
+	color: var(--template-font-color-error);
 }
 
 .feed.item.error.active .item-title::before {
-	color: white;
+	color: var(--template-font-color-light);
 }
 
 .aside .category .title:not([data-unread="0"])::after,
@@ -1760,9 +1805,8 @@ input:checked + .slide-container .properties {
 }
 
 .feed.active .item-title:not([data-unread="0"])::after {
-	background-color: transparent;
-	color: white;
-	border: 1px solid #fff;
+	color: var(--template-font-color-light);
+	border: 1px solid var(--template-border-color);
 	font-weight: bold;
 }
 
@@ -1859,15 +1903,18 @@ input:checked + .slide-container .properties {
 		display: none;
 	}
 
+	.aside:target {
+		box-shadow: 3px 3px 5px var(--template-box-shadow-color-transparent);
+	}
+
 	.aside .toggle_aside,
 	#panel .close,
 	.dropdown-menu .toggle_aside,
 	#slider .toggle_aside {
-		background: #f6f6f6;
 		display: block;
 		width: 100%;
 		height: 50px;
-		border-bottom: 1px solid #ddd;
+		border-bottom: 1px solid var(--template-border-color);
 		line-height: 50px;
 		text-align: center;
 	}
@@ -1916,7 +1963,7 @@ input:checked + .slide-container .properties {
 	}
 
 	.dropdown-target:target ~ .dropdown-toggle::after {
-		background-color: #fff;
+		background-color: var(--template-background-color);
 		width: 10px;
 		height: 10px;
 		content: "";
@@ -1943,7 +1990,7 @@ input:checked + .slide-container .properties {
 		padding-top: 0;
 		margin-top: 0;
 		overflow: auto;
-		box-shadow: -3px 0 3px #aaa;
+		box-shadow: -3px 0 3px var(--template-box-shadow-color-transparent);
 	}
 
 	.configure .dropdown-target:target ~ .dropdown-toggle::after {
@@ -1974,7 +2021,7 @@ input:checked + .slide-container .properties {
 
 	.aside:target + .close-aside,
 	.configure .dropdown-target:target ~ .dropdown-close {
-		background: rgba(0, 0, 0, 0.2);
+		background-color: var(--template-modal-background-color-transparent);
 		display: block;
 		font-size: 0;
 		position: fixed;
@@ -2080,8 +2127,7 @@ input:checked + .slide-container .properties {
 	}
 
 	html, body {
-		background: #fff;
-		color: #000;
+		background-color: var(--template-background-color);
 		font-family: Serif;
 	}
 
@@ -2095,7 +2141,7 @@ input:checked + .slide-container .properties {
 	}
 
 	.flux_content .content a {
-		color: #000;
+		color: var(--template-font-color-dark);
 	}
 
 	.flux_content .content a::after {
@@ -2112,8 +2158,8 @@ input:checked + .slide-container .properties {
 	padding: 1rem;
 	max-width: 1000px;
 	text-align: center;
-	background-color: #eee;
-	border: 1px solid #e0e0e0;
+	background-color: var(--template-background-color-middle);
+	border: 1px solid var(--template-border-color);
 	border-radius: .25rem;
 }
 
@@ -2129,10 +2175,6 @@ input:checked + .slide-container .properties {
 	margin-left: 1rem;
 }
 
-.preview_background {
-	background-color: transparent;
-}
-
 .drag-drop-marker {
 	margin: -1px;
 }
diff --git a/p/themes/base-theme/template.rtl.css b/p/themes/base-theme/template.rtl.css
index 8e7f2c992..a6428f009 100644
--- a/p/themes/base-theme/template.rtl.css
+++ b/p/themes/base-theme/template.rtl.css
@@ -2,6 +2,42 @@
 
 /*=== GENERAL */
 /*============*/
+:root {
+	--template-font-color-dark: #000;
+	--template-font-color-grey-dark: #666;
+	--template-font-color-grey-light: #aaa;
+	--template-font-color-light: #fff;
+	--template-background-color-error-transparent: #ff000040;
+	--template-font-color-error: #f00;
+
+	--template-background-color: #fff;
+	--template-background-color-transparent: #ffffff7f;
+	--template-background-color-middle: #eee;
+	--template-background-color-dark: #ccc;
+
+	--template-border-color: #999;
+	--template-border-color-error: #f00;
+
+	--template-switch-accent-color: #85d885;
+
+	--template-dragdrop-color: #ff0;
+	--template-dragdrop-color-transparent: #ff02;
+
+	--template-noThumbnailImage-background-color: #ddd;
+
+	--template-darken-background-hover-transparent: #6662;
+
+	--template-modal-background-color-transparent: #0007;
+
+	--template-box-shadow-color-transparent: #0003;
+
+	--template-scrollbar-handle: #0002;
+	--template-scrollbar-handle-hover: #0005;
+	--template-scrollbar-track: #0001;
+	--template-scrollbar-track-hover: #0001;
+
+	--template-loading-image: url("loader.gif");
+}
 
 @font-face {
 	font-family: 'OpenSans';
@@ -15,9 +51,8 @@
 html, body {
 	margin: 0;
 	padding: 0;
-	background: white;
+	background-color: var(--template-background-color);
 	height: 100%;
-	color: black;
 	font-family: "OpenSans", "Cantarell", "Helvetica", "Arial", sans-serif;
 	font-size: 100%;
 }
@@ -88,11 +123,11 @@ sup {
 }
 
 kbd {
-	background-color: #eee;
+	background-color: var(--template-background-color-middle);
 	padding: 2px 24px 2px 4px;
 	display: inline-block;
-	color: #333;
-	border: 1px solid #b4b4b4;
+	color: var(--template-font-color-grey-dark);
+	border: 1px solid var(--template-border-color);
 	border-radius: 3px;
 	text-indent: -20px;
 	white-space: pre-wrap;
@@ -211,7 +246,7 @@ textarea[rows="2"] {
 }
 
 textarea:invalid {
-	border: 2px dashed red;
+	border: 2px dashed var(--template-border-color-error);
 }
 
 .prompt textarea,
@@ -227,9 +262,9 @@ input:disabled,
 select:disabled {
 	background-color: transparent;
 	min-width: 75px;
-	color: lightgray;
+	color: var(--template-font-color-grey-light);
 	font-style: italic;
-	border: 1px dashed lightgray;
+	border: 1px dashed var(--template-border-color);
 }
 
 input[type="radio"],
@@ -282,7 +317,7 @@ button.as-link:active {
 }
 
 button.as-link[disabled] {
-	color: #ddd !important;
+	color: var(--template-font-color-grey-light) !important;
 }
 
 /*=== Tables */
@@ -420,7 +455,7 @@ a.btn {
 	height: 1.75em;
 	border: 0;
 	border-radius: 1em;
-	background-color: #ccc;
+	background-color: var(--template-background-color-dark);
 	cursor: pointer;
 	box-sizing: content-box;
 	background-repeat: no-repeat;
@@ -436,7 +471,7 @@ a.btn {
 }
 
 .switch.active {
-	background-color: rgb(133, 216, 133);
+	background-color: var(--template-switch-accent-color);
 	background-repeat: no-repeat;
 	background-position: center center;
 	background-image: url('../icons/enabled.svg');
@@ -467,7 +502,7 @@ a.btn {
 	top: 0.2em;
 	width: 1.5em;
 	height: 1.5em;
-	background-color: #fff;
+	background-color: var(--template-background-color);
 	background-image: url('../icons/disabled.svg');
 	background-repeat: no-repeat;
 	background-position: center center;
@@ -476,7 +511,7 @@ a.btn {
 }
 
 .switch:not([disabled]):hover::before {
-	background-color: #eee;
+	background-color: var(--template-background-color-middle);
 }
 
 .switch.active::before {
@@ -509,7 +544,7 @@ a.btn {
 
 .btn:focus-visible,
 input[type="checkbox"]:focus-visible {
-	outline: 2px solid #ccc;
+	outline: 2px solid var(--template-border-color);
 }
 
 /*=== Navigation */
@@ -579,9 +614,9 @@ input[type="checkbox"]:focus-visible {
 
 .dropdown-menu {
 	margin: 0;
-	background: #fff;
+	background-color: var(--template-background-color);
 	display: none;
-	border: 1px solid #aaa;
+	border: 1px solid var(--template-border-color);
 	min-width: 200px;
 	position: absolute;
 	left: 0;
@@ -593,6 +628,7 @@ input[type="checkbox"]:focus-visible {
 	height: 10px;
 	border-width: 1px 1px 0 0;
 	border-style: solid;
+	border-color: var(--template-border-color);
 	content: "";
 	position: absolute;
 	top: -6px;
@@ -660,7 +696,7 @@ input[type="checkbox"]:focus-visible {
 .separator {
 	display: block;
 	height: 0;
-	border-bottom: 1px solid #aaa;
+	border-bottom: 1px solid var(--template-border-color);
 }
 
 /*=== Alerts */
@@ -705,7 +741,7 @@ input[type="checkbox"]:focus-visible {
 	margin: 0 0 5em;
 	padding: 1em 0;
 	width: 100%;
-	border-top: 1px solid #aaa;
+	border-top: 1px solid var(--template-border-color);
 	text-align: center;
 }
 
@@ -756,7 +792,6 @@ input[type="checkbox"]:focus-visible {
 	display: inline-block;
 	max-width: 95%;
 	width: 20rem;
-	border: 1px solid #ccc;
 	vertical-align: top;
 }
 
@@ -815,7 +850,7 @@ input[type="checkbox"]:focus-visible {
 }
 
 .dragging {
-	background-color: rgba(255, 255, 0, 0.7);
+	background-color: var(--template-dragdrop-color)
 }
 
 .dragging .icon {
@@ -827,17 +862,17 @@ input[type="checkbox"]:focus-visible {
 }
 
 .drag-active .drop-zone:not(.drag-disallowed) {
-	background: repeating-linear-gradient(-45deg, transparent, transparent 40px, rgba(250,250,210, 0.7) 40px, rgba(250,250,210, 0.7) 60px);
+	background: repeating-linear-gradient(-45deg, transparent, transparent 40px, var(--template-dragdrop-color-transparent) 40px, var(--template-dragdrop-color-transparent) 60px);
 }
 
 .drag-active .drag-hover.drop-zone {
-	background: rgba(250,250,210, 0.7);
+	background-color: var(--template-dragdrop-color-transparent);
 	transition: background 0.5s;
 }
 
 li.drag-hover {
 	margin: 0 0 5px;
-	border-bottom: 2px solid #ccc;
+	border-bottom: 2px solid var(--template-border-color);
 }
 
 .drag-drop {
@@ -847,11 +882,11 @@ li.drag-hover {
 
 @keyframes droppedKeyframe {
 	0% {
-		background-color: rgba(250,250,210, 0.7);
+		background-color: var(--template-dragdrop-color-transparent);
 	}
 
 	50% {
-		background-color: yellow;
+		background-color: var(--template-dragdrop-color);
 	}
 
 	100% {
@@ -864,33 +899,38 @@ li.drag-hover {
 @supports (scrollbar-width: thin) {
 	#sidebar,
 	.scrollbar-thin {
-		scrollbar-color: rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.05);
+		scrollbar-color: var(--template-scrollbar-handle) var(--template-scrollbar-track);
 		scrollbar-width: thin;
 	}
 
 	#sidebar:hover,
 	.scrollbar-thin:hover {
-		scrollbar-color: rgba(0, 0, 0, 0.3) rgba(0, 0, 0, 0.05);
+		scrollbar-color: var(--template-scrollbar-handle-hover) var(--template-scrollbar-track-hover);
 	}
 }
 
 @supports not (scrollbar-width: thin) {
 	#sidebar::-webkit-scrollbar,
 	.scrollbar-thin::-webkit-scrollbar {
-		background: rgba(0, 0, 0, 0.05);
+		background-color: var(--template-scrollbar-track);
 		width: 8px;
 	}
 
+	#sidebar:hover::-webkit-scrollbar,
+	.scrollbar-thin:hover::-webkit-scrollbar {
+		background-color: var(--template-scrollbar-track-hover);
+	}
+
 	#sidebar::-webkit-scrollbar-thumb,
 	.scrollbar-thin::-webkit-scrollbar-thumb {
-		background: rgba(0, 0, 0, 0.1);
+		background-color: var(--template-scrollbar-handle);
 		display: unset;
 		border-radius: 5px;
 	}
 
 	#sidebar:hover::-webkit-scrollbar-thumb,
-	.scrollbar-thin::-webkit-scrollbar-thumb {
-		background: rgba(0, 0, 0, 0.3);
+	.scrollbar-thin:hover::-webkit-scrollbar-thumb {
+		background-color: var(--template-scrollbar-handle-hover);
 	}
 }
 
@@ -1045,6 +1085,13 @@ input[type="search"] {
 	visibility: visible;
 }
 
+.aside .toggle_aside:hover,
+#panel .close:hover,
+#slider .toggle_aside:hover,
+.dropdown-menu .toggle_aside:hover {
+	background-color: var(--template-darken-background-hover-transparent);
+}
+
 /*=== New article notification */
 #new-article {
 	display: none;
@@ -1101,7 +1148,7 @@ a.website:hover .favicon {
 }
 
 .flux:not(.current):hover .item.title {
-	background: #fff;
+	background-color: var(--template-background-color);
 	max-width: calc(100% - 320px);
 	position: absolute;
 }
@@ -1111,7 +1158,7 @@ a.website:hover .favicon {
 }
 
 .flux .item.title a {
-	color: #000;
+	color: var(--template-font-color-dark);
 	text-decoration: none;
 }
 
@@ -1150,7 +1197,7 @@ a.website:hover .favicon {
 }
 
 .flux .item.thumbnail img {
-	background: repeating-linear-gradient( 45deg, #ddd, #ddd 5px, transparent 5px, transparent 10px );
+	background: repeating-linear-gradient( 45deg, var(--template-noThumbnailImage-background-color), var(--template-noThumbnailImage-background-color) 5px, transparent 5px, transparent 10px );
 	display: inline-block;
 	width: 100%;
 	height: 100%;
@@ -1160,7 +1207,7 @@ a.website:hover .favicon {
 
 .flux .item.title .summary {
 	max-height: 3em;
-	color: #666;
+	color: var(--template-font-color-grey-dark);
 	font-size: 0.9em;
 	line-height: 1.5em;
 	font-weight: normal;
@@ -1171,7 +1218,7 @@ a.website:hover .favicon {
 
 .flux .item.title .author {
 	padding-right: 1rem;
-	color: #555;
+	color: var(--template-font-color-grey-dark);
 	font-size: .9rem;
 	font-weight: normal;
 }
@@ -1229,14 +1276,14 @@ a.website:hover .favicon {
 
 .content > header,
 .content > footer {
-	color: #666;
+	color: var(--template-font-color-grey-light);
 	font-size: .9rem;
 }
 
 .content > footer {
 	margin: 2rem 0 2rem;
 	padding-top: 1rem;
-	border-top: 2px solid #ccc;
+	border-top: 2px solid var(--template-border-color);
 	clear: both;
 }
 
@@ -1309,8 +1356,8 @@ br {
 	top: 1em;
 	right: 25%; left: 25%;
 	z-index: 9999;
-	background: #fff;
-	border: 1px solid #aaa;
+	background-color: var(--template-background-color);
+	border: 1px solid var(--template-border-color);
 	opacity: 1;
 	line-height: 2;
 	visibility: visible;
@@ -1330,7 +1377,7 @@ br {
 }
 
 .notification a.close:hover {
-	background: rgba(10,10,10,0.05);
+	background-color: var(--template-darken-background-hover-transparent);
 }
 
 .notification a.close:hover .icon {
@@ -1360,8 +1407,7 @@ br {
 	width: 100%;
 	height: 100%;
 	overflow: auto;
-	background-color: #eee;
-	background-color: rgba(0,0,0,0.4);
+	background-color: var(--template-modal-background-color-transparent);
 }
 
 #popup-content {
@@ -1370,9 +1416,9 @@ br {
 	width: 80%;
 	height: 80%;
 	overflow: hidden;
-	background-color: #fafafa;
+	background-color: var(--template-background-color);
 	border-radius: .25rem;
-	box-shadow: 0 0 1px #737373, -1px 2px 3px #4a4a4f;
+	box-shadow: -3px 3px 5px var(--template-box-shadow-color-transparent);
 }
 
 .popup-row {
@@ -1385,14 +1431,14 @@ br {
 	width: 27px;
 	height: 27px;
 	padding-bottom: 5px;
-	color: #aaa;
+	color: var(--template-font-color-grey-light);
 	font-size: 28px;
 	font-weight: bold;
 }
 
 #popup-close:hover,
 #popup-close:focus {
-	color: #000;
+	color: var(--template-font-color-dark);
 	text-decoration: none;
 	cursor: pointer;
 }
@@ -1414,7 +1460,6 @@ br {
 
 /*=== Navigation menu (for articles) */
 #nav_entries {
-	background: #fff;
 	display: table;
 	position: fixed;
 	bottom: 0; right: 0;
@@ -1444,12 +1489,12 @@ br {
 #load_more.loading,
 #load_more.loading:hover {
 	padding: 10px 20px;
-	background: url("loader.gif") center center no-repeat #fff;
+	background: var(--template-loading-image) center center no-repeat var(--template-background-color);
 	font-size: 0;
 }
 
 .loading {
-	background: url("loader.gif") center center no-repeat;
+	background: var(--template-loading-image) center center no-repeat;
 	font-size: 0;
 }
 
@@ -1516,7 +1561,7 @@ br {
 	position: fixed;
 	top: 0; bottom: 0;
 	right: 0; left: 0;
-	background: rgba(0, 0, 0, 0.5);
+	background-color: var(--template-modal-background-color-transparent);
 	opacity: 0;
 	transition: visibility .3s, opacity .3s;
 	visibility: hidden;
@@ -1528,7 +1573,7 @@ br {
 }
 
 #panel {
-	background: #fff;
+	background-color: var(--template-background-color);
 	display: none;
 	position: fixed;
 	top: 2%; bottom: 2%;
@@ -1549,18 +1594,18 @@ br {
 
 /*=== Slider */
 #slider {
-	background: #fff;
+	background-color: var(--template-background-color);
 	width: 0;
 	position: fixed;
 	top: 0; bottom: 0;
 	left: 0;
 	overflow: auto;
-	border-right: 1px solid #aaa;
 	z-index: 100;
 }
 
 #slider.active:target {
 	width: 750px;
+	box-shadow: 3px 3px 5px var(--template-box-shadow-color-transparent);
 }
 
 #slider.sliding {
@@ -1575,7 +1620,7 @@ br {
 }
 
 #slider.active:target + #close-slider {
-	background: rgba(0, 0, 0, 0.2);
+	background-color: var(--template-modal-background-color-transparent);
 	font-size: 0;
 	right: 0;
 	z-index: 99;
@@ -1608,7 +1653,7 @@ br {
 	display: block;
 	max-width: 640px;
 	height: 320px;
-	border: 1px solid #aaa;
+	border: 1px solid var(--template-border-color);
 	position: relative;
 	min-width: 260px;
 	margin-bottom: 30px;
@@ -1643,7 +1688,7 @@ br {
 	display: none;
 	width: 65px;
 	height: 100%;
-	color: #fff;
+	color: var(--template-font-color-light);
 	font-family: "Varela Round", sans-serif;
 	font-size: 1000%;
 	position: absolute;
@@ -1653,20 +1698,20 @@ br {
 	transition: opacity .2s;
 	text-align: center;
 	line-height: 225%;
-	background-color: rgba(255, 255, 255, .3);
+	background-color: var(--template-background-color-transparent);
 	text-shadow: 0px 0px 15px rgb(119, 119, 119);
 }
 
 .properties {
 	padding: 5px;
-	background: rgba(255, 255, 255, 0.7);
+	background-color: var(--template-background-color-transparent);
 	display: none;
-	color: #000;
-	border-top: 1px solid #aaa;
+	border-top: 1px solid var(--template-border-color);
 	bottom: 0;
 	right: 0; left: 0;
 	position: absolute;
 	z-index: 10;
+	backdrop-filter: blur(3px);
 }
 
 .properties .page-number {
@@ -1708,18 +1753,18 @@ input:checked + .slide-container .properties {
 }
 
 .log-item.log-error {
-	background-color: #bd362f44;
+	background-color: var(--template-background-color-error-transparent);
 }
 
 .item.share.error a::after,
 .category .title.error::before,
 .item.feed.error .item-title::before {
 	content: " ⚠ ";
-	color: #bd362f;
+	color: var(--template-font-color-error);
 }
 
 .feed.item.error.active .item-title::before {
-	color: white;
+	color: var(--template-font-color-light);
 }
 
 .aside .category .title:not([data-unread="0"])::after,
@@ -1760,9 +1805,8 @@ input:checked + .slide-container .properties {
 }
 
 .feed.active .item-title:not([data-unread="0"])::after {
-	background-color: transparent;
-	color: white;
-	border: 1px solid #fff;
+	color: var(--template-font-color-light);
+	border: 1px solid var(--template-border-color);
 	font-weight: bold;
 }
 
@@ -1859,15 +1903,18 @@ input:checked + .slide-container .properties {
 		display: none;
 	}
 
+	.aside:target {
+		box-shadow: -3px 3px 5px var(--template-box-shadow-color-transparent);
+	}
+
 	.aside .toggle_aside,
 	#panel .close,
 	.dropdown-menu .toggle_aside,
 	#slider .toggle_aside {
-		background: #f6f6f6;
 		display: block;
 		width: 100%;
 		height: 50px;
-		border-bottom: 1px solid #ddd;
+		border-bottom: 1px solid var(--template-border-color);
 		line-height: 50px;
 		text-align: center;
 	}
@@ -1916,7 +1963,7 @@ input:checked + .slide-container .properties {
 	}
 
 	.dropdown-target:target ~ .dropdown-toggle::after {
-		background-color: #fff;
+		background-color: var(--template-background-color);
 		width: 10px;
 		height: 10px;
 		content: "";
@@ -1943,7 +1990,7 @@ input:checked + .slide-container .properties {
 		padding-top: 0;
 		margin-top: 0;
 		overflow: auto;
-		box-shadow: 3px 0 3px #aaa;
+		box-shadow: 3px 0 3px var(--template-box-shadow-color-transparent);
 	}
 
 	.configure .dropdown-target:target ~ .dropdown-toggle::after {
@@ -1974,7 +2021,7 @@ input:checked + .slide-container .properties {
 
 	.aside:target + .close-aside,
 	.configure .dropdown-target:target ~ .dropdown-close {
-		background: rgba(0, 0, 0, 0.2);
+		background-color: var(--template-modal-background-color-transparent);
 		display: block;
 		font-size: 0;
 		position: fixed;
@@ -2080,8 +2127,7 @@ input:checked + .slide-container .properties {
 	}
 
 	html, body {
-		background: #fff;
-		color: #000;
+		background-color: var(--template-background-color);
 		font-family: Serif;
 	}
 
@@ -2095,7 +2141,7 @@ input:checked + .slide-container .properties {
 	}
 
 	.flux_content .content a {
-		color: #000;
+		color: var(--template-font-color-dark);
 	}
 
 	.flux_content .content a::after {
@@ -2112,8 +2158,8 @@ input:checked + .slide-container .properties {
 	padding: 1rem;
 	max-width: 1000px;
 	text-align: center;
-	background-color: #eee;
-	border: 1px solid #e0e0e0;
+	background-color: var(--template-background-color-middle);
+	border: 1px solid var(--template-border-color);
 	border-radius: .25rem;
 }
 
@@ -2129,10 +2175,6 @@ input:checked + .slide-container .properties {
 	margin-right: 1rem;
 }
 
-.preview_background {
-	background-color: transparent;
-}
-
 .drag-drop-marker {
 	margin: -1px;
 }