Use a GtkHeaderBar for the credits and about buttons. It makes less sense here than in other places to go back to the buttons on the bottom, considering we only have a close button, so we always use a header bar. https://bugzilla.gnome.org/show_bug.cgi?id=720059
		
			
				
	
	
		
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			4 lines
		
	
	
		
			43 B
		
	
	
	
		
			C
		
	
	
	
	
	
N_("About");
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N_("Credits");
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N_("License");
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