If you'd like to have multiple areas on the same map with different outline colors, please follow the steps outlined below.
1. Import each area and edit the style by following regular mapping steps.
2. In the side panel, click on the Content tab.
3. Click on the icon to the left of the Area of Interest, by default it will outline in red without a fill.
4. Select the fill colour, which defaults to no colour.
5. Edit your colours and click Update Style.