Editing the load bar before a Universal AR expereince

Hi, I’m using unity and the universal SDK. I’m trying to edit the load bar that shows just before the Unity experience loads. Before the unity logo. I believe I’ve found where it’s supposed to be edited in the doccumentation Universal AR | Loading UI but I’m not sure how to go about that. I’ve tried taking a look at the WebGl template, but can’t seem to edit it. Am I looking in the right place? Any advice would be appreciated. Thanks

If anyone else comes across this you can edit it in the index.html file in the WebGLTemplates folder. Had to open it in VS code from the file browser not in unity to access it though.