Yes that's a full account of 'em. 360x240 for the dimensions as posted, palette also as posted.
Committed in
changeset 5303. Can you check the official build (when it's available)?
I fooled around with the width and height and found none fixes 320 video it's probabaly something like the y scaling but with x and only if 320 is active, beyond me to fix without effort.
IIRC this mode only fills half the width in the buffer, it would require some more support code (there are some ports that handle this better, but I'm not sure it's worth the effort).
