Both scripts started out from the simple desire of resizing text areas easily (like CSS3 UI).
There is one way to get Opera to resize textboxes just like in Safari, but even better because you can also resize images, input fields, text areas, iframes, and objects.
To make it work, unfocus from the text area, then just hold shift while resizing, and to restore it to its original size just double click the resize area.
Is the like Power-drag but with fixed increase-decrease values for resizing text areas.
To make it work, focus onto a text area, then hold ALT and move the mouse pointer and a menu will appear.