Wow, this is waaaay too big for my taste. I'm absolutely sure it is possible to write the same cross-platform app for less than 500KBytes and no dependencies.
Yes, this 450 line program could have been written in whatever native language you want with probably 3x the code and time spent, but why would you? Developer time has been more expensive than hardware for a decade now. Everyone here loves to virtue signal about how horrible programs that take 0.01% of the space of a normal SSD and 1% of the RAM are, but the fact is that it does not matter at all, and you wouldn't ev…
For that matter, I did notice the size, as I'm browsing on a mobile connection (travelling) and the 55M color picker utility would take a bit over 2 minutes to download.