It don't need to remember my last choice, as long as I could use the same button to swith between them.
1 push: Black on white.
2 pushes: White on black.
3 pushes: Yellow on black.
If i push to times quickly, I will get white on black. If I press 3 times, it will be Yellow on black. If I got White on black, and want black on white, It's okey to press one time.
Is this possible?
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