Add a gallery page

Also make the README screenshots smaller, and display them in a grid.

The screenshots were renamed to match the theme filenames,
a new screenshot was added for the Elementary theme,
and the Adapta Nokto screenshot was trimmed to remove the background.

8 files changed, 59 insertions, 9 deletions

diff --git a/README.md b/README.md
index a77b38f..41b98d2 100644
--- a/README.md
+++ b/README.md
@@ -5,15 +5,32 @@
 
 These VS Code themes blend seamlessly with your GTK themes to provide a more integrated experience.
 
-![Arc Dark Theme](res/arc-dark.png)
-
-![Adapta Theme](res/screen_adapta.png)
-
-![United Ubuntu](res/screen_ugnome.png)
-
-![Yaru Dark](res/yaru-dark.png)
-
-![Yaru](res/yaru.png)
+<table>
+  <tr>
+    <td><img alt="Adapta Nokto" src="res/adapta-nokto.png" width="200"></td>
+    <td><img alt="Ambiance" src="res/ambiance.png" width="200"></td>
+    <td><img alt="Arc Dark" src="res/arc-dark.png" width="200"></td>
+    <td><img alt="United Ubuntu" src="res/united-gnome.png" width="200"></td>
+  </tr>
+  <tr>
+    <th>Ambiance</th>
+    <th>Adapta Nokto</th>
+    <th>Arc Dark</th>
+    <th>United Gnome</th>
+  </tr>
+  <tr>
+    <td><img alt="Yaru Dark" src="res/yaru-dark.png" width="200"></td>
+    <td><img alt="Elementary" src="res/elementary.png" width="200"></td>
+    <td><img alt="Yaru" src="res/yaru.png" width="200"></td>
+    <td></td>
+  </tr>
+  <tr>
+    <th>Yaru Dark</th>
+    <th>Elementary</th>
+    <th>Yaru</th>
+    <th></th>
+  </tr>
+</table>
 
 Syntax coloring used:
 
diff --git a/gallery.md b/gallery.md
new file mode 100644
index 0000000..20a1a72
--- /dev/null
+++ b/gallery.md
@@ -0,0 +1,33 @@
+# Gallery
+
+## Dark themes
+
+### Adapta Nokto
+
+![Adapta Nokto](res/adapta-nokto.png)
+
+### Ambiance
+
+![Ambiance](res/ambiance.png)
+
+### Arc Dark
+
+![Arc Dark](res/arc-dark.png)
+
+### United Ubuntu
+
+![United Ubuntu](res/united-gnome.png)
+
+### Yaru Dark
+
+![Yaru Dark](res/yaru-dark.png)
+
+## Light themes
+
+### Elementary
+
+![Elementary](res/elementary.png)
+
+### Yaru
+
+![Yaru](res/yaru.png)
diff --git a/res/adapta-nokto.png b/res/adapta-nokto.png
new file mode 100644
index 0000000..d65cd2a
--- /dev/null
+++ b/res/adapta-nokto.png
diff --git a/res/screen_ambiance.png b/res/ambiance.png
index 41367b6..41367b6 100644
--- a/res/screen_ambiance.png
+++ b/res/ambiance.png
diff --git a/res/elementary.png b/res/elementary.png
new file mode 100644
index 0000000..0c36ec5
--- /dev/null
+++ b/res/elementary.png
diff --git a/res/screen_adapta.png b/res/screen_adapta.png
deleted file mode 100644
index a9f386c..0000000
--- a/res/screen_adapta.png
+++ /dev/null
diff --git a/res/screen_arc.png b/res/screen_arc.png
deleted file mode 100644
index 0c174da..0000000
--- a/res/screen_arc.png
+++ /dev/null
diff --git a/res/screen_ugnome.png b/res/united-gnome.png
index 13d9320..13d9320 100644
--- a/res/screen_ugnome.png
+++ b/res/united-gnome.png