catch error

Textualize · Jul 18, 2024 · 686fb9c · 686fb9c
1 parent 44b1a54
commit 686fb9c
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/textual/color.py b/src/textual/color.py
@@ -600,8 +600,10 @@ def from_colors(cls, *colors: Color | str, quality: int = 50) -> Gradient:
             quality: The number of steps in the gradient.
 
         Returns:
-            _type_: _description_
+            A new Gradient instance.
         """
+        if len(colors) < 2:
+            raise ValueError("Two or more colors required.")
         stops = [(i / (len(colors) - 1), Color.parse(c)) for i, c in enumerate(colors)]
         return cls(*stops, quality=quality)