Just to clarify, the package darkroom is an image manipulation tool. The theme DarkRoom is provided by the human-theme package.
andrew@andrew-testing:~$ dpkg -L human-theme | grep DarkRoom /usr/share/themes/DarkRoom /usr/share/themes/DarkRoom/gtk-2.0 /usr/share/themes/DarkRoom/gtk-2.0/gtkrc /usr/share/themes/DarkRoom/metacity-1 /usr/share/themes/DarkRoom/metacity-1/icon_minimize.png /usr/share/themes/DarkRoom/metacity-1/icon_maximize_u.png /usr/share/themes/DarkRoom/metacity-1/metacity-theme-1.xml /usr/share/themes/DarkRoom/metacity-1/icon_restore_u.png /usr/share/themes/DarkRoom/metacity-1/icon_close_u.png /usr/share/themes/DarkRoom/metacity-1/icon_minimize_u.png /usr/share/themes/DarkRoom/metacity-1/icon_maximize.png /usr/share/themes/DarkRoom/metacity-1/icon_restore.png /usr/share/themes/DarkRoom/metacity-1/icon_close.png /usr/share/themes/DarkRoom/index.theme
Just to clarify, the package darkroom is an image manipulation tool. The theme DarkRoom is provided by the human-theme package.
andrew@ andrew- testing: ~$ dpkg -L human-theme | grep DarkRoom themes/ DarkRoom themes/ DarkRoom/ gtk-2.0 themes/ DarkRoom/ gtk-2.0/ gtkrc themes/ DarkRoom/ metacity- 1 themes/ DarkRoom/ metacity- 1/icon_ minimize. png themes/ DarkRoom/ metacity- 1/icon_ maximize_ u.png themes/ DarkRoom/ metacity- 1/metacity- theme-1. xml themes/ DarkRoom/ metacity- 1/icon_ restore_ u.png themes/ DarkRoom/ metacity- 1/icon_ close_u. png themes/ DarkRoom/ metacity- 1/icon_ minimize_ u.png themes/ DarkRoom/ metacity- 1/icon_ maximize. png themes/ DarkRoom/ metacity- 1/icon_ restore. png themes/ DarkRoom/ metacity- 1/icon_ close.png themes/ DarkRoom/ index.theme
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