Add note about . (#3873)

Textualize · Dec 15, 2023 · bf7b70c · bf7b70c
1 parent 0099e49
commit bf7b70c
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/docs/guide/design.md b/docs/guide/design.md
@@ -93,10 +93,13 @@ textual colors
 
 Here's a list of the colors defined in the default light and dark themes.
 
+!!! note
+
+    `$boost` will look different on different backgrounds because of its alpha channel.
+
 ```{.rich title="Textual Theme Colors"}
 from rich import print
 from textual.app import DEFAULT_COLORS
 from textual.design import show_design
 output = show_design(DEFAULT_COLORS["light"], DEFAULT_COLORS["dark"])
 ```
-