Me too. Looks like the 0.6.15.1 installer changelog shows MajorRenegade's contour icons, but there is no installer option for it... instead it is installed by default.
For players- I worked around it by deleting the ship_dead_icons, ship_icons and ship_own_icons folders from inside (wows install folder)/res_mods/0.6.15.1/res_mods/