Merge pull request #3679 from bcapener/remove-leftover-code

Remove leftover code from previous commit

Author: willmcgugan

CONTRIBUTORS.md

@@ -91,3 +91,4 @@ The following people have contributed to the development of Rich:
 - [L. Yeung](https://github.com/lewis-yeung)
 - [chthollyphile](https://github.com/chthollyphile)
 - [Jonathan Helmus](https://github.com/jjhelmus)
+- [Brandon Capener](https://github.com/bcapener)

rich/style.py

@@ -524,7 +524,7 @@ def parse(cls, style_definition: str) -> "Style":
                 if not word:
                     raise errors.StyleSyntaxError("color expected after 'on'")
                 try:
-                    Color.parse(word) is None
+                    Color.parse(word)
                 except ColorParseError as error:
                     raise errors.StyleSyntaxError(
                         f"unable to parse {word!r} as background color; {error}"