Double Arrow, Up
This is a "Quick Up" button, which is composed of two triangles with sharp corners pointing upward at the same time. The triangles of most platforms are connected end to end or even overlap, showing black, white or gray; However, there is a certain gap between the two triangles of au by KDDI platform, which is purple. It should be noted that the background colors are different on different platforms. For example, Google platform depicts orange background color, Facebook platform displays gray background color, and Apple platform depicts gray-blue background color.
The "Fast Up button" is often used to pull the progress bar to adjust the play or show at double speed when you feel that there is not enough time, you want to know the story quickly, or you feel that the story is too slow. Therefore, the emoji can also be used to express the hope that the other party will speed up and finish a certain job quickly.
