Icons follow the freedesktop.org icon scheme. Icons must be placed in either the "root" level icon directory (share/icons, not recommended) or a subdirectory which matches one the system installed theme, i.e. share/icons/hicolor/scalable/actions. Note that 'hicolor' is the default/backup theme. For the moment, putting all Inkscape icons in 'actions' subdirectory. Providing an 'index.theme' file or generating an icon cache via gtk-update-icon-cache does not appear useful. ticotico.jpg is (C)2008 Dario Sanches licensed under Creative Commons by-sa 3.0