User wanted the image to be X-mirrored (NS-mirror, so place
names on a map are correctly mirrored for the corridor
orientation), but the text labels to be readable normally.
Now labels are drawn in normal orientation:
- N at top-left
- S at bottom-left
- y at top-right
- x at bottom-right
The text is no longer reversed. With the corridor's X-swap
arrangement, this means:
- screen left = west tiles (low x)
- screen right = east tiles (high x)
- within each tile, the image is X-mirrored, but the text
inside is readable
Richard Zink
e33598476a