Hello Courynn :)

Do you have the Tome of Ultimate Mapping? If you do, the complete 'how to' on varicolour symbols has it's own section starting on page 111.

That is probably the easiest way to learn the process, though you can easily ask again if you get stuck, or don't have the Tome.

If you already have FT3 you can update to FT3+ for free. Or if you don't have FT3 at all, when you buy it you should also get the One Day Worldbuilder packaged with the app. That will help you draw your own world from scratch. The Supplementary Notes are the ones for that.

Just so you can see it properly, here is an extract of the map. It's not a parchment texture, as you can see, but a bitmap export from a free app called Wilbur (instructions on how to produce these are included in the ODW), used as a background image for the a CC3 map.

Nice work, Jim :)

That was 8 years ago, now. Today we have a lot more commands for things like this.

The shortest way is just to add the missing bit if there is a gap, hide all other sheets but the LAND sheet, pick the properties of the land, and then use the keyboard command TRACED to select them all and join them all into one by automatically tracing all the way around the whole lot. Delete the separate bits of land and you will be left with just the one part.

That looks like an interesting map :)

There are lots of different ways of doing a glow, so I will tell you mine, and others will probably tell you theirs. Which you use is up to you.

I would draw the purple polygons with a smooth poly on their own sheet, and on that sheet I would add a reasonably large blur to soften the edge, and then a Blend Mode set to Screen.

If you are interested in creating a heatmap Jason Payne wrote a good article on that not so long ago right here: https://rpgmaps.profantasy.com/overland-heatmaps-with-cc3-by-jason-payne/