Disappearing Perspective Preferences

I wanted to change the icon on one of my custom perspectives so I clicked on the eye icon in the toolbar and saw the preferences. Clicking on the image well did nothing (no icon crop tool a la Contacts?) and that down-going triangle mouse target is so small! so I brought up Finder and selected the new image but in doing so the Perspective preference pane disappeared. Leaving Finder in the background and dragging the image from Finder to the image well did work just fine. Works, but things I did not expect: no in-flow crop tool, non-persistant pref pane.