I’ve uploaded a new code sample! This sample explains how to create Windows Forms Applications with non standard borders. Think rounded corners. You can view this code sample here
New Code Sample – Non Standard Windows Forms Borders
Published January 12, 2013 Code Samples , New Version , Opensource 1 CommentTags: Form Borders, NonStandardFormBorders, TransparencyKey, Windows Forms
I guess you can’t set the color of the standard border of a button in Windows Forms.