How do I know which ID goes to what?

Go into USERGROUPS>USERGROUP MANAGER and you will see the group id for each group on the right side of the screen

Heres a screenshot of the usergroup manager and you will see to the right, it shows the group ID for each one

Yup, got it. Thanks.

Since I already removed the user group, though, I looked at the IDs on the User Group Color Bar settings and looked for the ID that wasn't on the User Group Manager and removed that one from the User Group Color Bar settings. :)

You're welcome :)

Installed but disabled until one thing is hopefully worked out. I have enough groups to cause a line break in the line and the line break splits the usergroup name in half (it has two words). A possible solution is to make the font text smaller so they all fit on one line or somehow changing the spacing between usergroups so the group that's on both lines is pushed to the second line only. If that's the way to fix it then also the starting point on the second line should be moved a bit to the right.

Any ideas?

Almost sounds like a resolution problem...

Or you can limit your usergroups titles to few charetars!!
ex: instead of Administraros use Admin

I installed this mod and it looks good but I wanted the ability to display the color legend from any page without having to change the template for each page so I added a link to the nav bar to allow a visitor to display the color legend on demand as a popup on any page.

The legend is being displayed via the standard_error message box in a small php file that the link calls. Because I don't plan on changing the color assignments I simply hard coded the colors in the popup message via font markups in the php file. This eliminates having to retrieve the color values each time the popup is displayed.

Here's the php code:

Useless.

Some of our usergroups are 'black-bold', some of them are 'black-normal'.

This plugin shows everything as bold.