I looked through a whole bunch of the .dxpack files in galciv2\screens, but was unable to find any that had any scripting for things other than alignment and formatting type things. I was able to find four files in galciv2\appdata with .dxscript2 file extensions, but that directory looks like it's for the little launcher applet.
Is all the actual data placed on the dxpack screens in the game done by the engine itself rather than any scripting in the .dxpack files?