How to apply gradient color on frame created in tcltk (ttk)?

Question

Is it possible to get gradient color in frame which created in ttk in tcl.

Answer 1

You can only get a gradient color if you:

• Use a gradient color on OSX Aqua, which has a more sophisticated coloring scheme that Tk plugs into partially, or
• Use a style that paints the background using a photo image that has a gradient in it, or
• Write a custom style engine that does everything itself.

The first is very platform specific (and I don't know the details), the second is taking you into the complex world of custom image styles, and the third involves deep voodoo that is definitely beyond what I know!