Would be my new favorite clipboard manager, if some of the following suggestions could be implemented.
Main Issue: Allow the background color to be customized so that the text can be read when the screen is dimmed down. As it is right now one needs to flip through the clipping to be able to read them. It also would be great if one could customize the height of a clipping block to show more clippings in the window.
Allow it to show in Every Space.

Minor Issues:The Shadow window can be pushed up under the Menu Bar.
Scroll Bar can't be pushed all the way up. (Like the space for the up/down arrows are there, but not visible)

It would be great if password protection could be extended to individual clipboards that are not shared for storing passwords etc.
Absolute marvelous would be if the various clipboards and clippings could be accessed and copied under the Menulet as Drop-Down lists. The "About Shadow" and "Check for Updates" could be under "Preferences" to gain more space in the menu.