Failed to load mods: The given sprite rectangle (left_top=0x0, right_bottom=64x64) is outside the actual sprite size (left_top=0x0, right_bottom=32x32).
If this is being used as an icon you may need to define the icon_size property.
See the log file for more information.: angelsrefininggraphics/graphics/icons/angels-ore4/angels-ore4.png

Huh... Why would Angel's mod be using 32-pixel icons? The way I set up icons assumes 64-pixel size, so that explains the crash. I wonder if this is something that's not supposed to be exposed to the player? As in, something I need to skip creating recipes for? I'm a bit busy with work for the time being, so I'll have a look when time permits. I'm not really sure what to do if I do have to render a 32-pixel icon. That would throw off the other parts of the compound icon. Hmm...

Hmm... I had some time to examine, and I'm honestly not sure what to do. The way Angel's mods generate recipe icons is very confusing to me. That mod seems to use 32-pixel icons for the ores themselves, then combining those with 64-pixel icons for various machines. As I pull icons directly from the ore item, then fixing that will be... complicated. As in, it would require a fairly significant addition to the recipe generation code, and probably a refactor to pull that out into its own function.

Unfortunately, I don't have an easy fix to offer for the time being.

maybe you can ask angel mods editor how to handle this better?

It's less an issue of "I don't know how to do it" and more an issue of it's a fair amount of work to put together, since it would require new functionality. I don't know when I'll have the time and presence of mind to do actual programming, so I can't offer a deadline.