The windows don't have the usual Mac accoutrements, like a title bar. This may be an appropriate design decision for an application meant to live in the background so it takes up as little space as possible, but it can cause problems. It's not immediately clear how you move the window around on your screen. The menu to configure this is in an odd position at the edge of the main window, rather than in the menu bar with all the other commands. The maps produced by the program are beautiful, and displaying one is easy, as the command is available from the menu bar.
Maps are available in any of eleven projections, showing a number of perspectives.
One nice touch is that the maps include political boundaries, unlike most grayline mapping software for the Mac. One nice feature that may not be immediately apparent is that you can re-center the map by dragging a city onto the map from the database listing. The author of Time Palette, Trygve Inda, has proven to be responsive to feedback about the program. I mentioned to him that in version 3.0.3, the portions of the maps showing darkness were too dark, and that it was difficult to see the countries underneath. In the next revision, the maps had been lightened.