opt.music = ts_lookup_int(ts, "demo.music", opt.music);
opt.srgb = ts_lookup_int(ts, "demo.srgb", opt.srgb);
opt.msaa = ts_lookup_int(ts, "demo.aa", opt.msaa);
opt.music = ts_lookup_int(ts, "demo.music", opt.music);
opt.srgb = ts_lookup_int(ts, "demo.srgb", opt.srgb);
opt.msaa = ts_lookup_int(ts, "demo.aa", opt.msaa);