It's a while since I used Radarbox but you can add you own reporting points to your map by adding the details in the Preferences > Radarbox Tab > Custom Legend List . They have to be entered as Reporting point, Latitude, Longitude.
I used for Eg
Balix,59.0000,-10.0000
BCN,51.7256,-3.2631
When your details are entered click on Custom Legend in the Map drop down list and your new points should show
From memory the text colour is linked to the Outline colour.
Hope this helps
Bearcat