How to customize colors-Object Designer-Forms

Tools > Object Designer > Form > Design > Color When customizing forms, I see 16 color choices in the color palette, none of which are very attractive. Is there any way to change the available colors? Any way to add custom colors? What if I want my forms background color to be sky blue of tan–such as Navision 3.70 Main Menu? How can I get this color into the palette?

Never mind–go to properties–insert MS Access numeric value for color in “backcolor”