We built it some time ago and I can really use some feedback. It is also available as a Chrome plugin at https://chrome.google.com/webstore/detail/gefgglgjdlddcpcapi...

Neat - one of the first things I tried to do was scroll from left to right by "grabbing" the shade bars and flicking my mouse left, which wasn't functional.

Installed as a Chrome app, you can simply type "chroma" in the URL bar

Thanks for the feedback MoOmer :)