Missing file in EQ2Map POI Finder by TreeMos

[TreeMos]

A question about the scrollpage.xml file. I'm curious what its purpose is and why it is a separate file from the rest of the standard Spoiler Mod xml. In particular I've been wondering about the line near the end of the file that says

<Page Name="ScrollPageExtent" ScrollExtent="255,3591" Size="255,3591"/>

and where the 3591 value came from. If I'm to autogenerate the file, I need to know how mother came up with that value. If it really matters what I put for that. Or if I'll need to change it at all.