If no color is indicated on the map, this is an unmarked area. Here you may fly your drone undisturbed. Shooting without a special permit is also allowed here.
However, it is important to keep the general rules in mind: do not fly over groups of people and buildings, keep your drone a sufficient distance from people/public roads, and try not to take more risk than necessary. That way, you have fun with your drone, and everything goes safely.
Now should you want to know more about the no-fly zones, and your flying areas, here is a handy link to use if you want to check where you can and cannot fly a drone.