Simple extension allowing the selected label colors of cards in Trello to fill the entire card. Settings allow either combing colors of multiple labels by simple rgb base value average or pick the color of the first label.
22.214.171.124 - Fixed issue with changed classes
126.96.36.199 - Reduced CPU load by only updating the DOM when there are changes
188.8.131.52 - Fixed some style issues and added an option button to select between 'merge' and 'use first label color'-mode to the top left menu.
184.108.40.206 - Should play more nicely with stickers now. If not - let me know.