While you improved translation work in removing markup from strings in ev_properties-view.c, you removed the possibility to format the ":". E.g. in French we add a non-beaking space before the ":". So either you should let the ":" with the strings (N_("Title:"), N_("Location:"), etc.) or if you want to reuse these strings in other contexts, add the possibility to translate something like _("%s:").