The source project of this merge request has been removed.
Issue #4107: Removing titlebar/borders from Windows Splash Screen
As indicated in #4107 (comment 631135), the Windows Splash Screen currently has a title bar and borders. Adding gtk_window_set_decorated (splash->window, FALSE); after the GTKWindow object is created removes these, putting the splash screen's appearance in line with other platforms:
The relevant function splash_create () is identical in gimp-2-10, so it should be easy to backport this change as well if approved.