Multi-sized .ico file support?

[tokosauce]

I wanted to use icon files that contain multiple images for each size, but it looks like the packager doesn't account for them and only uses one size's image.
Would it be possible to have .ico files like this in the packager?

[GarboMuffin]

if you input a .ico that already has multiple sizes it should work? i have not tested that though

[tokosauce]

I tried, but it only used the largest size from my .ico file