Add: map info bg can be customized through mapper colors preferences

[Delwing]

Brief overview of PR changes/additions

I'll put a picture instead of description :)

Motivation for adding to Mudlet

Other info (issues closed, discussion etc)

[add-deployment-links]

Hey there! Thanks for helping Mudlet improve. 🌟

Test versions

You can directly test the changes here:

• linux: https://make.mudlet.org/snapshots/f7315f/Mudlet-4.15.1-testing-pr5994-baae5b92-linux-x64.AppImage.tar
• osx: https://make.mudlet.org/snapshots/566a8b/Mudlet-4.15.1-testing-pr5994-baae5b92.dmg
• windows: https://make.mudlet.org/snapshots/9e609b/Mudlet-4.15.1-testing-pr5994-baae5b92-windows.zip

No need to install anything - just unzip and run.
Let us know if it works well, and if it doesn't, please give details.

[github-actions]

	Messages
✔️	PR type: Addition

Generated by 🚫 dangerJS against baae5b9

[vadi2]

LGTM. Just needs testing

[SlySven]

You will also need to add the new pushButton into the right place in the Tab stop list - fortunately the Qt editor has gotten a bit easier in recent versions and you can actually move the items in the list in there, instead of hand-editing the .ui file. Select the "Mapper colors" tab in the editor and click on the fourth tab to go into "Tab stop" mode - then use the context "Right click" (1) menu to "Set tab order..." select (2) and move (3) the pushButton_mapInfoBg control to the right place (around 106 I think) - the numbers in the list might update when you hit "Ok" (4)...