Default settings for titles defined within nodes (not titles of drop-down lists).
Can be overridden as necessary.
Child of: <settings>
Parent of: <height>, <width>, <x>, <y>, <font_size>, <font>, <text_color>, <bg_color>
Example:
<title_defaults>
<x>80</x>
<y>50</y>
<height>35</height>
<width>50</width>
<font_size>12</font_size>
<font>Arial</font>
<text_color>#000000</text_color>
<bg_color>0xDDDDDD</bg_color>
</title_defaults>