Two new toggles have been added to the Options menu, to darken the grid and to always show where cannons are aiming at!
Here's a comparison of how the map looks without activating these new toggles and after activating both of them!
BeforeAfterAlso, even if you don't have the cannon directions toggle active, they'll show up when hovering them with the mouse!
The Wicked Cannons from the Wicked Cannoneer boss fight will also show where they're aiming at, but remember that this is only useful in order to easily know where to strike them from to deal more damage to them, as these cannons will change their direction before they fire to try to hit you.