--- a/ThemeCfg.wiki	Tue Feb 13 08:13:46 2018 +0000
+++ b/ThemeCfg.wiki	Tue Feb 13 08:25:21 2018 +0000
@@ -154,7 +154,7 @@
 (The “X” means the default number of Sudden Death flakes is variable. It depends on the window size and the terrain width.)
 
 == `sd-tint` ==
-Custom tinting of the background in Sudden Death.
+Custom tinting of the background in Sudden Death. The background color will be multiplied by the RGB and opacity values. With `$FF, $FF, $FF, $FF`, there is no change, while with `$00, $00, $00, $FF`, the backgroun turns completely black. The opacity value controls how visible the background image will still be. With an opacity of `$00`, the background image is not visible, only the `sd-tint` color can be seen.
 
 <code>Values: red, green, blue, opacity</code>