These are the OpenGeo Styles for the OpenStreetMap Project
These can be found in:
default/
This style was redesigned from the ground up after the original styles was finished. It is designed to bring more color to your maps. These styles can be found in:
bright/
planet_osm_line planet_osm_nodes planet_osm_point planet_osm_polygon planet_osm_rels planet_osm_roads planet_osm_ways