Add a key... I do not understand why some areas have dark gray and others have light gray overlays. Where is a key that tells me what I am
Please allow users to have something that allows them to understand what they are looking at. Also, to remove the gray overlays and see the individual color markers for specific crimes.
The overlays represent areas that do not allow their crime reports to be released. This method will probably be changed in the future, but crime reports for those areas will continue to be locked from public display.