Add base-theme in p/themes

This base theme is not visible by default (no name). You can use it
to create new theme.
Fix https://github.com/marienfressinaud/FreshRSS/issues/533 (comment)

1 files changed, 4 insertions, 1 deletions

diff --git a/app/Models/Themes.php b/app/Models/Themes.php
index da2bc9f90..538eb6554 100644
--- a/app/Models/Themes.php
+++ b/app/Models/Themes.php
@@ -31,7 +31,10 @@ class FreshRSS_Themes extends Minz_Model {
 			if (file_exists($json_filename)) {
 				$content = file_get_contents($json_filename);
 				$res = json_decode($content, true);
-				if ($res && isset($res['files']) && is_array($res['files'])) {
+				if ($res &&
+						!empty($res['name']) &&
+						isset($res['files']) &&
+						is_array($res['files'])) {
 					$res['id'] = $theme_id;
 					return $res;
 				}