Amazfit Watch faces

Thanks, asoo.
I found that out, too ;-), but that is exactly what I aim to avoid: That I install an official app/watchface that by chance uses the appid I arbitrarily chose for my own app/watchface. I know the chances a small, but nevertheless. So how to get one that is in fact unique? Would that be ...

In a watchface's json file one has to define an appid. Where would I get such an appid, as it surely must be unique?

I had a closer (sourcecode) look at another tool by the same author, SashaCX75, ImageToGTR3 of what asoo mentioned:

If you want to manipulate png used in ZeppOS, I recommend checking out this tool.
https://amazfitwatchfaces.com/forum/viewtopic.php?p=14958#p14958

Actually, the files are ...

Thank you!

A I create my images in Gimp I'd like to skip that step: Gimp can export indexed, non-compressed, left-top tga files - but I'm a little afraid of (almost) bricking the gts-4 again. So if anybody has tried that already, I'd like to be reassured - or warned

Hi everybody (first post of mine here),

after playing and fiddling with watchface making on code level, I almost bricked my GTS-4 with inadvertingly feeding it an image in the wrong format ( see here ). With the (true) png images I used, the watchfaces did not install and so I examined the example ...