"tilemapper" tool for tile-mapped anti-aliased graphics

Thank you

I read somewhere that the watches have a max number of bitmaps that can be loaded, but I assume because these are fonts it's not an issue if the device has enough memory.

exactly, fonts just eats up memory... however, with newer devices you can use AffineTransform to rotate bitmaps. So you could achieve same functionality by making a hour, min and secondhand (each one it's own image), and rotate them accordingly to the time. Possible also to scale them down, so you make for the largest 454px the hands, and then scale them down to lower resolutions.

Yes, I would be using affine transformations for more modern devices. Here's a few examples on how to do it:
https://forums.garmin.com/developer/connect-iq/f/discussion/336765/bitmap-transformation/1634475#

That being said, my tool is handy if you're keen on supporting legacy devices too, not just the more modern ones.

I ran the Analog example successfully, but after regenerating the tiles I'm getting an out of bounds error. I didn't change the artwork, I just wanted to see if I could generate tiles for a known working example. I think this is due to installing a later version of Python and Pillow 10.2.0. I'm on a Windows machine and struggled to get pillow 6.2.0 installed. For that version I get the message "We do not recommend building from source on Windows" so maybe I'll give it a try on WSL.

Thanks, will give that a try, I already have an idea for something :)

I assume the fonts would have better performance than the affine transforms though?

Got it working on Windows, with Python 3.8 and Pillow 10.3.0. I think my previous attempt failed because I had some syntax incorrect when generating the tiles. Windows doesn't like the * syntax, so I had to use: