You would be able to right-click on a port and choose from a menu of compatible nodes. The chosen node would be added to the canvas with a cable connecting it to the port.
Like Insert node between other nodes, this feature request intends to provide a convenient way to insert a node onto the canvas. The difference is that the other feature request is for dropping a node onto a cable or port, whereas this one is for a context menu on ports.
When rendering images/textures at small sizes, a well-known problem in computer graphics is that they may not look right. While our eyes and brain perceive colors blending together as objects get farther away, an image run through a typical scaling algorithm can end up looking grainy.
There are various techniques (including mipmapping) to address this problem, with various tradeoffs in CPU, GPU, and memory usage. For this feature request, we would select a technique whose tradeoffs work well with Vuo's realtime image processing.