Jux 2.502: UGR-Export is not possible

[Garth Thornton]

Hi Christian, the export to UGR can only handle simple gradients, and regards any that use the special Jux/XD features as incompatible. As UGR and other gradients don't support those, the only way to export them faithfully would be to resample them as a list of at least 256 colors, and I have not implemented that. You can create compatible gradients by doing the sampling manually, but that is a lot of work for more than a few.