diff --git a/Color-schemes.md b/Color-schemes.md
index 97ec7b4..0158a38 100644
--- a/Color-schemes.md
+++ b/Color-schemes.md
@@ -14,6 +14,8 @@ If fallback is shown as "`fallback...`" it means that `fallback`'s fallback colo
 * `fall` fallbasks are `color`;
 * so `option` fallbacks will be `other_option`, `fall`, `color`.
 
+Also fallback color can have "alpha component" value from 0.0 (transparent) to 1.0 (opaque) shown in brackets next to color, e.g. `color (0.5)`. They are set internally on **level 1** and cannot be changed, but you can set color before it (i.e. higher level) to avoid losing custom transparency.
+
 ### Current layers
 
 * **[Layer 1](https://github.com/RadRussianRus/sddm-slice/wiki/Layer-1)** - color options that are mandatory.