option_layer_ooc_25k: "UK historic: 1:25k"
option_layer_ooc_7th: "UK historic: 7th"
option_layer_ooc_npe: "UK historic: NPE"
option_layer_osmarender: OSM - Osmarender
option_layer_tip: Choose the background to display
option_layer_yahoo: Yahoo!
option_layer_ooc_25k: "UK historic: 1:25k"
option_layer_ooc_7th: "UK historic: 7th"
option_layer_ooc_npe: "UK historic: NPE"
option_layer_osmarender: OSM - Osmarender
option_layer_tip: Choose the background to display
option_layer_yahoo: Yahoo!