When you open the palette there are two rows at the top that can't be edited. The rest of the palette can be edited just by picking one of them and clicking Define Color.

If you set one of the editable colours as your knockout colour and then edit that colour in the palette at a later date the polygons of that colour will become the new shade, but the colour in the Color Key will remain the same. That means the knockout will no longer work.

That's why the default knockout colour for the Color Key effect is colour number 6 - the magenta in the top row of the palette.

Hi everyone :D

In Ralf's words: It's been a while since we've done anything science fiction related, so let's take a look at the SciFi Bases style in tomorrow's live mapping session.

Come along and join in the live chat on Youtube here:

https://www.youtube.com/watch?v=4_4XkB0jdOw

Or you can watch it here if you prefer, though there is no live chat on the forum.

We look forward to seeing you there :D

It's very much something that will always be down to individual preferences. See what other's say, and also make sure to take note of your own preferences too ;)

I like the top one, but I'm not sure about the bottom one.

Hi everyone! :D

In this week's live mapping session Ralf will be trying out the latest Cartographer's Annual issue (June 2024): Ancient Cities

Come along and join in the chat here on Youtube:

https://www.youtube.com/watch?v=itl0-MKut3o

Or if you prefer you can watch it here:

We look forward to seeing you there :)