Handle extra whitespace in svg element's style value (#1170)

manim/mobject/svg/style_utils.py

@@ -72,13 +72,13 @@ def cascade_element_style(
             try:
                 key, value = style_spec.split(":")
             except ValueError as e:
-                if not style_spec:
+                if not style_spec.strip():
                     # there was just a stray semicolon at the end, producing an emptystring
                     pass
                 else:
                     raise e
             else:
-                style[key] = value
+                style[key.strip()] = value.strip()
 
     return style
 

tests/test_graphical_units/img_svg_resources/multi_part_path.svg

@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="100" height="100">
 <g>
-    <path style="fill:white" d="m 50,50 10,10 -10,10 z m 30,0 -10,-10, -10,10 z">
+    <path style="fill : white" d="m 50,50 10,10 -10,10 z m 30,0 -10,-10, -10,10 z">
     </path>
 </g>
 </svg>