滚动字幕，自动从右边滚动过左边的字幕，还可以自己修改，更改颜色-Scrolling marquee, automatically scroll from the right over the left subtitles can also modify, change the colors, etc.

测试眼力，随着测试星级提高，色差会越来越小，色块会越来越小，并且兼顾了各种颜色，对帮助认识自己识色盲区有帮助(Test eyesight, with the improvement of test star level, the color difference will be smaller and smaller, and the color block will be smaller and smaller, and give consideration to all kinds of c