[Suggestion] Improve visibility of @media etc. in symbol list

[elosha]

It would be cool if in the symbols list, keywords like @media etc. could be highlighted (i.e. bold), reverse-indented or contrasted in another way.

This would vastly improve overview when working on huge CSS files that contain large blocks of repeated statements, which just are separated by media queries.

Adopting code idention alone doesn't always work because it relies on correct indention, which often isn't the case.