[ars]

I always set my IDE to emulate those green CRT's when I can.

But there is an underlying physiological reason, see: https://gamesx.com/misctech/visual.htm (the website is very old and has aged badly, but makes the point).

Your eye has no ability to see blue in high resolution.

[bitwize]

For me it's Emacs in a terminal, set to a nice chunky bitmap (or bitmap-alike) font and #7fff7f foreground on black background. :) (For amber, try the X11 color "goldenrod", or #daa520!)

I'm aware of cool-retro-term. It is cool, but not useful for more than five minutes or so at a time.