There are predefined map layers in Site Management, which are available in all the projects as a default. Improve the usability by removing some of the predefined map layers and add own more usable maps.
Change the default maps by clicking Configure and select / unselect check-boxes in front of the layer list. The default map layers, or application background maps, are following:
Light OpenStreetMap
Dark OpenStreetMap
Color OpenStreet Map (default)
Satellite
NLS background (Finland)
NLS aerial (Finland)