[Steven Zahm]

@ Brian

I’m not exactly certain I follow. You can change the image opacity and change the panel and overlay color, see the doc page but the panel and overaly itself are not set to any opacity.

… or …

Do you mean how the active panel will be a lighter tint than the selected color? If that is what you mean, that is handled in the gridder.js file on line 210. If you make a change keep in mind the gridder.min.js is the file being served.

Does that helps!