Texture is the art part of the node.
In blending, you can add effect to element and it affects lower elements defined by Sorting.
For now (v0.8.4) there are those blending effects:
Masking Source is like Mask. You can be the insert elements you want to be the clip/dodge.
If there are element A, B and C. And on A you input B and C on A's mask source. Then you can clip/dodge A on B and C area.