If this results in incorrectly colored icons this scope needs to be added to your color scheme.
Gutter color sublime.
If you set colorize to false sublime text will still colorize them.
In this case your icons should be mostly white with shades of gray.
To colorize icons the gutter theme file should contain.
It works with plain css sass stylus or less.
To maintain the original color we colorize them using a scope that should get a white color.
If you are any sort of front end developer you probably want this right away.
A sublime text 3 plugin which displays a colour in the gutter if the line contains a colour.