Document the "Source Type" options in the "Export as: WebP" dialog
I'm not sure if this is the right place to ask this but I've been trying to find information about the field "Source Type" in GIMP 2.10 WebP dialog when exporting a file.
In the dropdown the options are: Default, Picture, Photo, Drawing, Icon, Text.
What is "Default"? What is the difference between "Picture" and "Photo"? (From where I live, these two words are synonymous.)
GIMP version 2.10.20 OS: GNU/Linux Tried searching the docs site but WebP is not in the list of instructions yet.
Thank you!