lesept:
Note that the colors I chose in the code are just aliases: 'CRGB::AliceBlue' is the same as '0xF0F8FF" which is the hexadecimal code for that color (see here). In RGB code, it means Red = F0, Green = F8 and Blue = FF. Then if you want to choose your own colors, you can use a 'color picker' such as the one from Google. It'll give you the HEX codes for the colors you choose, and you just have to copy them in the tables of lines 14 and 15lesept:
No, not very hard, tell me the colors for each led and each strip.
There is a color reference here : Pixel reference · FastLED/FastLED Wiki · GitHubIn this version of the code, the button handling is minimal. This means that you're supposed to push and release quickly, never keep the button pushed. Is it ok for you or would you need some better button handling, such as waiting for the button to be released to increment the leds?
Yes having some better button handling would be great, some times they light up two so waiting for button to be released would be terrific.