I never worked with views and color before in any application, and I was wondering what a good start would be? Thanks in advance. : )
Subclass an NSView, look at NSColor and NSBezierPath. :)
Also the NSRect functions, also… well, there’s a thousand and one demos about this stuff out there, browse them until you know not just how they’re structured but how they work their magic.
Also look at NSImage.