I am a new TB user - coming over from Postbox. The feature I miss the most is the way Postbox let me use "Topics". Essentially these are tags that are colour coded and I could set up a different topic/tag for each project I am working on. Then emails that relate to those tagged projects show up with their font in the card view in the colour of the topic/tag. I can also use topics to search for emails within a project. I can almost replicate the effect in TB using tags, but that only generates a small coloured icon in the bottom right corner of the email in card view. I have set up a userChrome.css file, but I'm not sure how to write the css code to make the font only in the card view also change to the tag colour? Is there anyone here who could help me? Or is there somewhere I can learn css for TB?