@namespace xul url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); /* Variables that start with --gnome- are added by me and are assigned * to elements somewhere in this code. The rest of the variables are * built-in in Firefox, so you need to add an !important if you wanna * override them. */ @media (prefers-color-scheme: dark) { :root { /* Accent */ --gnome-accent: #16A085; /* Buttons */ --gnome-button-suggested-action-background: linear-gradient(to top, rgb(36, 235, 195) 2px, #16A085); --gnome-button-suggested-action-border-color: #16A085; --gnome-button-suggested-action-border-accent-color: #004b3d; --gnome-button-suggested-action-hover-background: linear-gradient(to top, rgb(36, 235, 195), #16A085 1px); --gnome-button-suggested-action-active-background: rgb(16, 129, 107); --gnome-button-suggested-action-active-border-color: rgb(13, 109, 90); } }