Additions

• Added ability to drag camera with the Middle Mouse button
• Added confirmation when pressing continue without saving in Scenario Maker
• Added more clear toggle for erasing territory

Bugfixes & Improvements

• Replaced old control explanations with better ones in Scenario Editor
• Fixed brush size not being saved in area painter during gameplay
• Fixed issue where it was easy to get confused by switching from terrain editing to territory editing
• Adjusted terrain color display slightly