- download the packaged extention from THE RELEASES TAB
- navigate to
chrome://extensions/
you can also find this by clicking the...
settings menu > more tools > extensions - turn developer mode on there should be a toggle in the upper right-hand corner
- drag and drop the .crx file into the middle of the window
- click install on the window that pops up
its easy! just click the extension, select a color, and click save