jenkinsci/ircbot-plugin — pull request #4 by syl20bnr (2012-12-07 04:30:56+00:00)
Title: Added new configuration option to colorize sent messages depending on the current and previous states of job.

Checking this box allows the bot to send colorized messages depending on the
current and previous states of a job.

The bot tries to send green messages for successful jobs
and red messages for failures but this may not be right
if your IRC client has defined a custom theme of colors.

Here are the rules for coloring messages:

Starting previously successful job: green
Starting previously fixed job: olive
Starting previously failed job: red
First successful build (fixed job): green background
First failure: red background
Still successful job: bold green
Still failing job: bold red
Default message: bold gray

There is no support for colorblind theme for now.