It would be amazing to have an integrated upscaler in the Cape Fixer tool that can convert classic 64x32 or 32x16 capes into 512x256 or HD OptiFine textures without blurring pixel edges.
Why this is needed:
- Standard image upscalers blur the pixel boundaries.
- Nearest-neighbor preserves the Minecraft pixelated look.
- Bicubic with sharpening could work nicely for painterly HD cloaks.