Created attachment 125680 [details]
I added a image of both menus. On the left option 2, on the right option 1.:

When using calc there a two ways to chose a background color of a cell:

1: You right click on the cell and navigate to background
2: You navigate on the toolbar to the background color button and click on it

The result that can be achieved is twice the same but at option 2 there's a shortcut to pick a custom color instead of the predefined ones. This shortcut is not present when using  option 1. Would it be possible to add this shortcut also to the menu when right-clicking on a cell?