Investigate fractional scaling support

[lah7]

More of a curiosity, does fractional scaling (like 110% or 125%) work? Does the game support floating point numbers for its UI geometry and graphics?

For example, a 64x64 box or graphic:

Scale	Pixels
100%	64 x 64
110%	70.4 x 70.4 ⚠️
120%	76.8 x 76.8 ⚠️
130%	83.2 x 83.2 ⚠️
150% (#37)	96 x 96
200%	128 x 128

Fractional scaling has its disadvantages. It's likely to cause subpixel rendering and potentially blurriness, depending on how we upscale the images.

ℹ️ Give this issue a 👍🏼 if you have a need for fractional scaling.