gtk-builder-tool GTK+ Developer Matthias Clasen gtk-builder-tool 1 User Commands gtk-builder-tool GtkBuilder file utility gtk-builder-tool COMMAND FILE Description gtk-builder-tool can perform various operations on GtkBuilder .ui files. Commands The following commands are understood: Validate the .ui file and report errors to stderr. Simplify the .ui file by removing properties that are set to their default values and write the resulting XML to stdout. List all the named objects that are created in the .ui file.