Add optional property fill to FormattedCell.

Author: rudolfbyker

aa_py_openpyxl_util/_write_only.py

@@ -14,7 +14,7 @@
 
 from openpyxl import Workbook
 from openpyxl.cell import WriteOnlyCell, Cell
-from openpyxl.styles import Font
+from openpyxl.styles import Font, Fill
 from openpyxl.utils import get_column_letter
 from openpyxl.worksheet._write_only import WriteOnlyWorksheet
 from openpyxl.worksheet.formula import ArrayFormula
@@ -65,6 +65,11 @@ class FormattedCell:
     See https://foss.heptapod.net/openpyxl/openpyxl/-/issues/1898
     """
 
+    fill: Optional[Fill] = None
+    """
+    The cell's fill (background). Optional.
+    """
+
     def check(self) -> FormattedCell:
         """
         Check a cell for potential errors before writing it to a sheet.
@@ -125,6 +130,10 @@ def create_openpyxl_cell(
             # noinspection PyUnresolvedReferences,PyDunderSlots
             cell.font = self.font
 
+        if self.fill:
+            # noinspection PyUnresolvedReferences,PyDunderSlots
+            cell.fill = self.fill
+
         return cell