Really fantastic addon! One issue I have found is exporting in Substance Designer. Filters seem to be applied at the end and the image loses its quality when at lower res. Would it be ok to have a simple tutorial on the Youtube channel on how exporting in Designer works with Pixel8r? Thanks again : )
When exporting from Designer I usually will work at a high res, then Pixel8r step and lastly add a transform node to downscale to the desired resolution (if the pixe8r res is a power of two). This should be pixel perfect and 1:1 with Pixel8r, but you can be extra sure it is by disabling filtering and mipmapping on the transform node.
If not pixelating to a power of two, export the pixelated high res image, then downscale in any image editor (I use Photoshop) using nearest neighbor and it will be pixel perfect.
Quick example of the power of two case:
