The best thing would be, to have icons named system-hibernate, system-suspend and system-reboot. These unfortunately are not (yet?) part of freedesktop.org specification, at least as far as I can see.
While view-refresh and device-harddisk should be available in all icon themes, the "sleep" icon is not (at the moment it is only available in human-icon-theme). So at least for the sleep action should be considered a name, that is available in all themes (or a generic icon should be installed to hicolor-icon-theme).
>do you have other icons suggestions?
The best thing would be, to have icons named system-hibernate, system-suspend and system-reboot. These unfortunately are not (yet?) part of freedesktop.org specification, at least as far as I can see.
While view-refresh and device-harddisk should be available in all icon themes, the "sleep" icon is not (at the moment it is only available in human-icon-theme). So at least for the sleep action should be considered a name, that is available in all themes (or a generic icon should be installed to hicolor- icon-theme) .