You might notice that the dots on the map differ in color. Below are what the different colors mean:
Blue dots
The blue dots are properties that have already been added to your account.
Black dots
You have not selected a filter yet and these properties are not yet added to your account.
Orange dots
Orange dots represent properties that match the filters you've selected. If a dot is blue but highlighted in orange, it means the property meets your filters and is already added to your account.
Heatmap
The orange highlights on the map indicate the areas where the majority of properties matching your selected filters are located. The highlight is only available on certain zoom levels.