Frame is a Scenes Nodes Generator to make a parametric spline Frame with controls for outer dimensions, thickness and corner radius. While it is very easy to achive with built in primitives, the ability to control the frame thickness while maintaining the outer dimensions is a big time saver and more flexible than using 2 shapes and a spline mask. I believe many people will find it very useful
Frame 2.0 has the added ability to dimension the frame from the inner edge. Radius also has individual controls for inner and outer radius for more flexibility.