Renames every layer in your Photoshop file to meet the webp animation requirement.
Download renamePS.js and save anywhere
File > Scripts > Browse > Locate the renamePS.js file
You will be prompted for a duration per frame for all frames
Entering 100 will become "(100 ms)"
Entering 42 will become "(42 ms)"
etc.
12fps -> 83ms
24fps -> 42ms
30fps -> 33ms
48fps -> 21ms
60 fps -> 16ms