Anti-Aliasing has not yet been incorporated into PaulOS:TRT.
This is a technology demo. It is still in early stages. Currently, it only works in greyscale, but true colour support it in development.
Scaling is included on this page as it uses the anti-aliasing functions to allow for smoothing etc.
When scaling up, the sub-pixel precise getpixel command is used to give intermediate colour values, and when scaling down, the sub-pixel precise putpixel command is used to ensure that each source pixel has an effect.