Nothing is ideal there but it will get around the artifacts you are seeing. 75 will eventually be released as stable and then the whole problem will be history. Till then sit tight!
Anti-alias adds a feather to the edges of the vector images. This will cause unwanted slight halo effect around things. It will make the image look like the white underbase is not lining up with the color layer.
In otherwords, when the edges are feathered the dtg rip will add white ink on the feathered edge to try to get the feather effect. For dtg you need clean sharp lines.
This effect is good if you are printing on paper, in some programs it's called font smoothing. It makes it easier on the eye when reading. In photoshop when you type fonts, you have a choice of none, strong, sharp and so on in a drop down menu. Always choose the none option, any of the other options are font smoothing or anti-aliasing.
Ellis wrote: Conclusion
Deco is creating PNG files with anti-aliasing at some point while converting from vector to PNG.