jellyfin-web/src/bower_components/emby-webcomponents/guide/programs.css

.newTvProgram {
    background: #38c;
    color: #fff
}

.liveTvProgram {
    background: #c33;
    color: #fff
}

.premiereTvProgram {
    background: #EF6C00;
    color: #fff
}

.repeatTvProgram {
    background: #009688;
    color: #fff
}