Note: This is a feature-request, not a bug.

The Metacity themes listing is lacking some vital imformation.

First: It is neither stated nor visible from the screenshots if a theme defines its own colors for window decorations or gets it from the Gtk-theme. More often than not one downloads a theme just to see that it has hardcoded colors (often with matching images) and quite often these colors do not play well at all with the colors of the chosen Gtk theme. Since changing the colors in the Metacity xml file is non-trivial (expecially when the theme comes with images for buttons, window corners etc.) the theme is often useless. Solution: Note for every theme if it uses just the colors from Gtk or its own hardcoded colors.

Second: It is neither stated nor visible from the screenshots if a theme makes windows change only the title bar or the whole frame when a window is focussed. When you're are using a "focus follows mouse" policy, themes that change only the title bar of a focussed window are often totally unusable because the title bar of the window with the focus is not neccessarily visible then. Solution: Note for every theme if it is optimized for "click to focus" (which means that the title bar of the focused window is always visible) or for "focus follows mouse" (which means that the title bar of the focussed window may not be visible).

OK, it's probably hard to track this for themes already in the repository but for new submitted themes those bits of information could be easily supplied by the submitter.