clkinfocal - change it or new clkinfo

You mean it would have been the same picture, but it showed just MON rather than MON 30?

I think it'd probably need to be some option - for example in the pebble++ clock (https://banglejs.com/apps/?id=pebblepp) I use, the image is shown at double-size, and I think adding the number after the day would probably force the font to auto-adjust to be smaller, then making the day less readable.

Just a thought, but in the clock you're using there, is there a reason the image couldn't be rendered double-size too? It might make sense.

But personally I'd add it as an option to clkinfocal - at least it's already a separate app so adding a settings page isn't the end of the world, and you could make sure you only read the settings file once at startup.