Proposal: Support true color in Colorize

[wooster0]

Many terminals today support true color with ANSI escape sequences.

Here's an example:

puts "\e[38;2;100;255;100mI'm green\e[0m"

This would colour the text in a nice bright green color:

Another example:

puts "\e[48;2;100;50;30mMy background is brown like wood\e[0m"

This would colour the background brown:

We can colour our texts in exactly 16777216 colors!

Heres a rainbow:

loop do
  print "\r\e[38;2;#{rand(0..255)};#{rand(0..255)};#{rand(0..255)}mI am a rainbow\e[0m"
  sleep 0.1
end

Right now Colorize doesn't supports any other colors than these:

black
red
green
yellow
blue
magenta
cyan
light_gray
dark_gray
light_red
light_green
light_yellow
light_blue
light_magenta
light_cyan
white

Having 16777200 more colors than this would be a good feature I think.

[makenowjust]

#3925 implements true color for Colorize also.

[wooster0]

But this PR doesnt seems to be really active anymore. Are you still working on it?

[makenowjust]

Yes if @asterite rethink. I actually love #3925.