Feature: Option for inherit color instead of transparent

[jkclose]

I noticed that None value forces the CSS of transparent. I see the value in that, but it doesn't apply to all situations. Alternatively an inherit value could come in handy. I have tested by adding this option in my current project.

I am not proficient with Plugins enough to find a way to add it as an option without modifying the plugin files, but it could be a nice addition to have as an option.