Optimize color selection of labels used in repository

[hpvd]

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• [X] I searched in the issues and found nothing similar.

Motivation

Today's color selection for labels in Pulsar's repository is not this intuitive to give a good overview. The main reasons:

• very different types use similar or near similar colors, e.g. type/bug and type/enhancement
• color section does not follow the typical/most used color theme, e.g. type/bug is in most repositories red background and white font color

in this repository it looks like this and people already ad a prefix like [Bug] to the title to have a better orientation...

typical color scheme in most repositories:

Solution

a good write up with some good ideas/principles for label design: https://seantrane.com/posts/logical-colorful-github-labels-18230/

following this, it may look like this way:

=> as a first quickfix on could at least recolor some of the negatively important ones to red background and white font color

• type/bug
• release/blocker
• component/security

Alternatives

No response

Anything else?

No response

Are you willing to submit a PR?

• [ ] I'm willing to submit a PR!

[Technoboy-]

Will update soon

[hpvd]

awesome, looking forward to it!

[hpvd]

thanks for this first step! Looks pretty ...red now..

[hpvd]

maybe somehow related to this issue? there seem to be no more automatic setting of labels for new issues since some days, see:

[hpvd]

hmm still no more automatic setting of labels for new issues...

[visortelle]

Related: https://github.com/apache/pulsar/issues/22277#issuecomment-2002553745