diff --git a/Color-schemes.md b/Color-schemes.md
index ca49588..20b5813 100644
--- a/Color-schemes.md
+++ b/Color-schemes.md
@@ -6,6 +6,8 @@ You can use either [SVG color names](https://www.w3.org/TR/SVG/types.html#ColorK
 
 > **Note:** if you're using only **layer 1**, backgrounds will be semi-transparent automatically. But if you set background colors manually on higher layers, they will lose automatic transparency. So it's recommended to use `#AARRGGBB` format for backgrounds.
 
+Levels that are higher than 1 have **fallback colors** to current or lower levels, so they can be optional and you could set options that you need.
+
 ### Current layers
 
 * **[Layer 1](https://github.com/RadRussianRus/sddm-slice/wiki/Layer-1)** - color options that are mandatory.