The Google Maps team rolled out last week a number of refinements to the look and feel of Google maps.
The changes are intended to keep the same information-rich map while making it easier to pick out the information that is most useful. The changes affect both the 'Map' and 'Hybrid' styles, and include numerous refinements to color, density, typography, and road styling worldwide. For example, in map view, local and arterial roads have been narrowed at medium zooms to improve legibility, and the overall colours have been optimized to be easier on the eye and conflict less with other things (such as traffic, transit lines and search results) that we overlay onto the map. Hybrid roads have gained a crisp outline to make them easier to follow, and the overall look is now closer to an augmented satellite view instead of a simple overlay.
In some areas the changes are obvious, while in others they are quite subtle.
Below you can see afar zoom of the area around London: