NO_COLOR support about color-eyre

[yaahc]

Glad to hear you're enjoying color-eyre 😊.

a mention of this particular pattern in the docs (I searched and couldn't find anything)

Happy to add this. Do you remember where you searched for this first? I figure those will be the best places to put the example to make sure ppl find it in the future.

a change to HookBuilder::blank() selecting either the default dark theme or the blank theme based on the presence of NO_COLOR

Also happy with doing this, I think I have a preference for the former suggestion but I don't mind this one or even doing both.

I'm sure you've already seen this, but I found https://no-color.org/ helpful

I hadn't seen this! I think this would be a good link to include in any updated examples we end up adding for this.

I'm sorry I don't have the time right now to write up a draft PR for you.

No worries! Thank you for taking the time to submit the issue.

[pksunkara]

There was quite a bit of work done on colorchoice crate as part of https://github.com/rust-cli/anstyle that handles the "should we color?" question. cc @epage

[epage]

colorchoice is just about having a central global so CLI control doesn't need to be piped through the entire program.

For NO_COLOR, that would normally be handled via printing via anstream which has you write your colors and then strips them depending on the environment the program is running within