def _get_scope_with_symbol(self, name):
        scope = self
        while True:
            parent = scope.get_enclosing_scope()
            if parent is None:
                return

            if name in parent.symbols:
                return parent

            scope = parent
Return `w:rPr/w:color` or |None| if not present. Helper to factor out
dataset/ETHPy150Open rspivak/slimit/src/slimit/scope.py/Scope._get_scope_with_symbol--crossover with--dataset/ETHPy150Open python-openxml/python-docx/docx/dml/color.py/ColorFormat._color