Reversed course on some of the graphics changes, DGR is working correctly again, DHGR is getting better, Video-7 is complete.
Fixed custom monochrome config settings being ignored.
The config utility now shows the border using the palette entry being edited live for preview purposes.
For most users the 4ns builds are recommended. DGR and DHGR rendering now require the faster RP2040 clock speed, and the 6502 bus interface is generally more reliable at 4ns.
This build has received enough testing that I feel confident marking it as release quality.