[BUGFIX] Fix return type annotation of Value::isSize()

Author: oliverklee

CHANGELOG.md

@@ -45,6 +45,7 @@ Please also have a look at our
 
 ### Fixed
 
+- Fix return type annotation of `Value::isSize()` (#892)
 - Don't render `rgb` colors with percentage values using hex notation (#803)
 - Parse `@font-face` `src` property as comma-delimited list (#790)
 

src/Value/Size.php

@@ -186,7 +186,7 @@ public function isColorComponent()
     /**
      * Returns whether the number stored in this Size really represents a size (as in a length of something on screen).
      *
-     * @return false if the unit an angle, a duration, a frequency or the number is a component in a Color object.
+     * @return bool whether the unit is an angle, a duration, a frequency or the number is a component in a Color object
      */
     public function isSize(): bool
     {