What do the colored letter icons mean next to file names?

[Kss113]

What do the colored letter icons mean next to file names?

If the image came through then it's the green A Icon next to the force.jason file and Blue E icon next to package.xml.

[jpricket]

A => Add - a new file added to the repo (these may be generated files that you want to add to the tfignore file)
E => Edit - an existing file was edited in the repo