Change keyboards shortcuts
In Edit > Preferences > Interface > Keyboard Shortcuts, you can either select one of the predefined keymaps, or you can define your own keyboard shortcuts and save them. The shortcuts that you change will be saved in the file default.xml in your user Inkscape preferences' "keys" directory.
You can also manually edit the file <Inkscape install directory>/share/keys/default.xml, or manually add a custom keys/default.xml in the user Inkscape preferences directory to define new shortcuts or remap (override) shortcuts from the shared keymap file.
In order to share the same shortcuts as other softwares, following configuration files are shipped with Inkscape (look at the <Inkscape install directory>/share/keys/ folder):
You can find a list of the available keymaps either in the Inkscape preferences, in the dropdown, or in the Inkscape git repository.
Change the user interface
Icons are all in an icons.svg file located in <Inkscape install directory>/share/icons/. It can be overwritten or modified by the user (be sure of what you do).
Alternatively, a custom icons/icons.svg file can be loaded from the user Inkscape preferences directory (it will override existing icons from the shared icons file, and fall back to icons from the shared icons file if some are missing in the custom one).
Examples of existing icons.svg:
- Default one from the Inkscape repository;
- a Tango Icon Set for Inkscape can be sent in the <Inkscape install directory>/share/icons/ directory, you can rename it.
- SimpleGrey Inkscape theme by Scnd101.
From Inkscape 0.93 onwards, Inkscape's icons are no longer taken from the icons.svg file. Instead, the application looks them up by name from the system, in the "normal" way, as described by the Freedesktop standard. In brief, you can now just install SVG (or PNG) files with the appropriate names into your <Inkscape install directory>/share/icons/ folder.
Change the theme/skin
In GTK, a theme is defined in a gtkrc file. On Windows, the Inkscape one is located in <Inkscape install directory>/etc/gtk-2.0.