The resolve keystones all look pretty similar.
Ok.
I only use one mastery page, which I redo every game.
Whenever I need a resolve keystone, it isn't that uncommon for me to take the wrong one, since they all look similar.
When I am throwing together my masteries in 10 seconds, the subtle differences between the resolve masteries. I think they should be made more distinct, at least as much as the other keystones.
Ferocity: Viking helmet with a saw blade esque sword. (reddish orange) Hooded figure with a one handed longsword (red and yellow) Magus weilding fire (purple)
Cunning: Hooded assassin with daggers (Black, light blue, green) Crowned guy playing with lightning (deep blue) Woman holding out hand in blue mist (cyan)
Resolve: Armored guy flexing with green background (dark green) Armored guy flexing with green background (light green) Armored guy flexing with green background (yellow green)
