fix: correct how named colors are looked up

Author: kalekundert

glooey/drawing/color.py

@@ -32,9 +32,9 @@ def from_anything(color):
     def from_str(str):
         # If the given string is to the name of a known color, return that 
         # color.  Otherwise, treat the string as a hex code.
-        if str in glooey.drawing.colors:
-            return glooey.drawing.colors[str]
-        else:
+        try:
+            return colors[str]
+        except KeyError:
             return Color.from_hex(str)
 
     @staticmethod