Create styleguide for b

[ghost]

The terminal can have coloured text and some degree of formatting. We should therefore come up with a styleguide for b so that all output is consistent and easy to read/understand.

Some ideas...

• White: default colour
• Blue: headings, status message icons
• Cyan: questions, prompts
• Magenta: log message icons, example text
• Green: success message icons
• Yellow: warning message icons
• Red: error message icons

[indigoxela]

Outch...! Can there be an override via local settings?

I'm always using my shells with (almost) black text on (almost) white background - less nerdish but way friendlier to my eyes.
Which means, that I wouldn't see any normal text and warnings because of missing contrast.

[ghost]

Hmm, interesting... These are the colours used: https://en.wikipedia.org/wiki/ANSI_escape_code#3/4_bit Will need some testing I guess.

[indigoxela]

Will need some testing I guess

I'd be glad to help out with some testing. Is it possible to have a (global) setting to switch colors off/on? (If it's not too complicated)

[jlfranklin]

I like this idea, I agree with @indigoxela that there need to be a global off/on for it. I'd add the following to the feature list:

• Default should be "reset/normal" (ESC[0m) not white (ESC[1;37m).
• If STDOUT is not a terminal (i.e., STDOUT is being piped or redirected), this should automatically turn itself off.

Bonus points:

• Allowing all the colors to be set in the config file,
• A pair of presets -- one for a dark-background terminal, one for a light-background terminal (like the default macOS terminal.)

[hosef]

Many commands have a --color option and you can alias bee to bee --color to have colors always enabled.

[ghost]

This appears to be an emerging standard for allowing output that defaults to showing colour, to be disabled: https://no-color.org/

I think we should add support for that to Bee.