diff -r 4229316a34ac -r 9b8b9ecd9e4a ThemeFiles.wiki
--- a/ThemeFiles.wiki	Wed Oct 24 14:12:38 2018 +0100
+++ b/ThemeFiles.wiki	Wed Oct 24 14:15:34 2018 +0100
@@ -161,7 +161,7 @@
 Sudden Death version of `Flake.png`. If missing, `Data/Graphics/SuddenDeath/SDFlake.png` is used. This image contains skulls and bones.
 
 === `Snow.png` ===
-A snowflake. A snowflake is a type of flake which might become part of the terrain. This is used in themes in which snow flakes are enabled (see [ThemeCfg]). The image size must be 3×3. If missing, `Data/Graphics/Snow.png` is used. The default image works just fine, only override this if you really want to.
+A snowflake. A snowflake is a type of flake which might become part of the terrain. This is used in themes in which snow flakes are enabled (see [ThemeCfg]). The image size should be 3×3, but different sizes might work as well (no guarantee, however). If missing, `Data/Graphics/Snow.png` is used. The default image works just fine, only override this if you really want to.
 
 === `CloudsL.png`, `SDCloudsL.png`, `FlakeL.png`, `SDFlakeL.png` ===
 Optional horizonally mirrored version of `Clouds.png`, `SDClouds.png`, `Flake.png` and `SDFlakeL.png`, respectively. If present, these images instead of the unmirrored ones are used when the wind blows the flakes or clouds to the left.