nextcloud-breeze-dark/core/css/apps/_radio.scss

/* Radio -------------------------------------------------------------------- */

.app-radio {
    
    #app-navigation {

        #app-settings {

            #volumeslider {

                .ui-widget-header {
                    background-color: $background-active;
                }

                .ui-state-focus {
                    background-color: $background-normal;
                }
            }

            #playbutton {
                &:hover, &:active, &:focus {
                    &:not(:disabled):not(.primary):not(#quota) {
                        border: none;
                        background-color: inherit;
                    }
                }
            }
        }
    }

    #app-content {

        #app-content-files {

            #filestable tbody tr {
                background-color: $background-normal !important;

                &:hover {
                    background-color: $background-active-hover !important;
                }
            }
        }
    }
}