Enable copying of a run's font

src/docx/text/font.py

@@ -53,6 +53,12 @@ def color(self):
         font."""
         return ColorFormat(self._element)
 
+    @color.setter
+    def color(self, value: ColorFormat):
+        this_color = self.color
+        this_color.theme_color = value.theme_color
+        this_color.rgb = value.rgb
+
     @property
     def complex_script(self) -> bool | None:
         """Read/write tri-state value.

src/docx/text/run.py

@@ -2,6 +2,8 @@
 
 from __future__ import annotations
 
+import copy
+
 from typing import IO, TYPE_CHECKING, Iterator, cast
 
 from docx.drawing import Drawing
@@ -136,6 +138,16 @@ def font(self) -> Font:
         this run, such as font name and size."""
         return Font(self._element)
 
+    @property
+    def formatting(self) -> CT_RPr:
+        """The |CT_RPr| object providing access to the full range of formatting properties for
+        this run, such as font name and size."""
+      return copy.deepcopy(self._r.get_or_add_rPr())
+
+    @formatting.setter
+    def formatting(self, new_rPr: CT_RPr):
+          self._r.replace(self._r.get_or_add_rPr(), new_rPr)
+
     @property
     def italic(self) -> bool | None:
         """Read/write tri-state value.