diagrams-theme: update with titlebar related options following 0.8.1

Author: johanmalm

deploy/img/theme-window.png

@@ -3,7 +3,9 @@
 <!-- source: img/theme-window.svg --> 
 <!-- also at "https://i.imgur.com/534SSaOl.png" -->
 ## Window
-<img src="img/theme-window.png" />
+<img src="img/theme-window.png"/>
+<br/>
+<img src="img/theme-window2.png"/>
 
 ## Menu
-<img src="img/theme-menu.png" />
+<img src="img/theme-menu.png"/>