-# Images:
-Color black wildebeest and camels pieces in white instead of transparent.
-Color white grasshoppers as well. Adjust wormholes color and size.
-Better "Check3" king images: just horizontal red bars maybe (1 to 3).
-Center king image for Knightmate variant.
+Analyse mode when launched from a position: should keep orientation
+--> $route query param, "side=w or b"