I recently got an Optifine cape, and found this user on the official Optifine Discord pull up this cape. Does anyone know how to edit the cape to this degree, and does
Custom Capes Explained! : r/Optifine
How To Get An Optifine Cape in Minecraft! - YouTube
How to install capes in Minecraft [TLauncher]
How to Get a Cape in Minecraft: 3 Steps (with Pictures) - wikiHow