candidate function names list can get too large for the screen

When using complex layouts with panels, views and cck all installed the candidate function names can become so large that the whole themer information panel is larger than the available window height. Because the panel does not scroll, the krumo part will not be visible and usable.

Assing the following CSS to devel_themer.css will fix it for all sane browsers:

#themer-popup dd.candidates {
  max-height: 10em;
  overflow: auto;
}