Ok, how does this look?

Featherdale with 2 hotspots:

.. the bridge with a link to the village:

... and the village with a link to the bridge:

Here's an interesting one... 10020 Blackfeather Bridge.FCW

The maps for cd-update1 and update2-3 are completely different. As far as I can tell:

• CD and Up1 show the Blackfeather bridge Village.
• Up2-3 show the bridge itself and surroundings.

My proposal, would be to keep both maps:

1. Rename the one from CD or Up1 to "10020 Blackfeather Bridge Village.FCW".
2. Add a link to this new map from Featherdale.FCW
3. Add a text link between the two 10020 maps.

Thoughts?

So... I took a dive to see which were these missing background images.

As fas as I could recall, FRIA didn't support images at all, and it does seem to be that way. This is the FRIA screenshot with all layers shown:

And this is the same map in CC3+ with all layers shown:

But that's not all. In CC3+ you can go to File->CC2 to CC3 conversion... and choose a target style (I chose dungeon CC3 style) and this is the result:

As you can see, the image is loaded automagically (doesn't look too good, though). What you can't see in a screenshot is that multiple sheets were added (FRIA didn't have sheets either). BTW, just deleting the entity with the missing fill, seems to show the same image than the FRIA.

My guess? This was probably some early experimentation towards adding raster fills to maps, but never made it to the official product. The fact that FRIA simply ignores these entities makes me think this theory could be right.

Sort of on the same page.

I did download the XPlibs and compiled the cdxptest example today. I don't know how much I'll be able to dedicate to it (so.. no ETA), but at least the tools are in place.

@Quenten , only 55 maps to go!