color tweak

Author: silverwind

web_src/css/themes/theme-gitea-dark.css

@@ -207,7 +207,7 @@
   --color-markup-table-row: #e8e8ff06;
   --color-markup-code-block: #e8e8ff16;
   --color-button: #151a1e;
-  --color-code-bg: #121518;
+  --color-code-bg: #14171a;
   --color-shadow: #00001758;
   --color-secondary-bg: #2f3138;
   --color-expand-button: #2b353e;