Grabbed with xv.
Put a frame
Put a frame with pixmap (good at drawing circles).
Changed color and add shading with gimp (good at blending).
Made some engravings with xpaint.
Also erased the red zone. (with gimp)
Changed the red zone (with gimp).
I had another idea. (with gimp).
Added some decorations. (with gimp).
What is the top-right square for ?
I am not sure but it can be used as an indicator
or something. (Actually, it is used for the loading indicator.)