Right now, customizing a schema with custom colors is very hard, because the new chosen color does not go into a recent colors entry in the Color Chooser dialog.

Also, modifying a dialog is also a great pain: it's necessary to go navigating/choosing between all the tabs and look at the rgb of each custom color so that it can be applied into another option.

As user colors shouldn't be that many (unless the user codes amidst a rainbow , suggestions:

1. On opening the Colors and Fonts dialog, automatically fill the custom colors (now empty) with the most used [present in most options] custom colors.

2. Add some more columns to the custom colors, so that all user custom colors can be at hand instantaneously.

3. On first opening the Color Chooser Dialog, fill the recently used colors with the most used colors.

4. When a color is chosen in the Colors dialog, automatically add it to the recent colors using an mru algorithm. Also add his color to the custom colors in the Color and Fonts dialog (with mru algorithm also).