Project: moodle
Issue MDL-42091: Fix the background color for atto buttons when clicked and hover
They should be: Hover: background-color: #ebebeb; background-image: radial-gradient(ellipse at center, #ffffff 60%,#dfdfdf 100%); Active: background-color: #dfdfdf; background-image: radial-gradient(ellipse at center, #ffffff 40%,#dfdfdf 100%);
Story points: 2