Update: Saving and Platformer Movement

This update adds new behaviors that might be of a greater general use. It also adds some missing features to existing behaviors.

New Behaviors:

Color Swap: swaps colors for the actor. Comes with custom blocks to apply effects and change opacity of the color swapped image. This has been part of this pack since last update, but it is worth a second mention. It's been here since last update, but worth mentioning again.

Player Control: platformer movement behavior, includes horizontal movement, jumping, facing, animations, slope detection and semi-solid platforms.

Save Scene Actor State: saves the position and attributes of actors placed in the Scene Designer.

Updates to Behaviors

Actor Aura and After Images: they now have an attribute to save the last used preset for both those behaviors.

The documentation was updated to reflect all these changes.