Chromo makes working with colors easier by adding color previews to the gutter. This gutter can be toggled on or off. Chromo will pick up color names and codes from all types of files and text (for this reason it may sometimes pick up colors in places you didn't expect).
More info: Vertagon Chromo
Currently Supported color types
The current build is early and thus is limited in features and may contain bugs. Look for future updates that will add more features and flatten out those bugs and performance issues.
In the future we hope to support the following features:
Good catch. Let us know what about this package looks wrong to you, and we'll investigate right away.