Defining the Source Region
The Source Region of a Sprite defines the area of the source Texture that is used to render the Sprite.
It can be edited interactively using the Edit Source Region mode in the Sprite Editor or set manually
in the Details panel using the Source Dimension and Source UV properties.
The Edit Source Region mode displays the current bounding rectangle of the Sprite's source region with handles
at each corner and at the center of each side. Each handle can be selected and dragged using the transform
New sprites can be created in this mode by Ctrl+Dragging around a region of the source texture, or by double-clicking
on a region of the texture (which will find all connected pixels and create a new sprite from the bounds).
Other sprites that share the same source texture will be drawn with a subdued border, and clicking on one of them will
change the current sprite being edited.