Anyone else with any interest in an Apple II take on ANSI is welcome to have a look too....
I'm assembling some screen shots of the most "important" terminal software for the A2 family... Some of it chosen because its the acknowledged best some is a bit more nostalgic. Its still a work in progress I'll end up integrating them into the pineapple website probably.
http://tlp.zapto.org/terminal/agate - Agate 0.69 Best behaved version
http://tlp.zapto.org/terminal/pterm - ProTerm v3.1 generally best there is.
When it comes to ANSI the above shows that AGATE is far and away better at display. It's drawing in graphics mode so it copies the complete character set and does it well. There is no attempt to display colour per se. But different colours are represented by different fonts.
ProTerm on the other hand, while great for file transfer and technically superior software, has issues, all bright colours are represented by inverse characters the rest are normal. It uses the standard Apple II character set with mousetext. The result is that some characters go missing, and others are poor substitutes. So pretty quickly anything "arty" can become unreadable.
Thats the best your classic AppleII can manage. Due to graphics limitations there is insufficient resolution to derive a coloured character set, as the colours use every second pixel column. DHGR has the same issue which is why AGATE is monochrome. While 280x192 is available monochrome, using colour will drop that to ~140x192.
Spec
*** THE READER V4.50 [freeware]
--- SuperBBS v1.17-3 (Eval)
* Origin: Scrawled in haste at The Lower Planes (21:3/101)