I make toolbar for Windows Forms application. ImageList for this toolbar has TransparentColor property. I want to draw each button background with this color. But I cannot find relation between these colors. TransparentColor property opens Colors dialog which has Custom, WEB and System tabs. Suppose I select LightGray color. How can I set bitmap background to the same color, I don't know it's RGB.
This is not programming question, just problem in using VS IDE.