In the built documentation folder of an application with Wolfram Workbench, there are two folders /Documentation/English/Index and /Documentation/English/SpellIndex which both contain three files: _g.cfs, segments_z and segments.gen.
For what purpose are these files included? Can they be modified an any meaningful way? What if they are removed?
Applications seem to continue to work like normal when the files are edited.

α,β,γ. I need the Mathematica front-end.meditor to render these correctly since I don't think I would like to use\[Alpha],\[Beta],\[Gamma]... . I figured that it would be far too much effort to add this as a new feature, so I didn't bother requesting it. – QuantumDot Nov 30 '16 at 17:24KramersβandRegularizedRiemannζ, and I have algebraic symbols likeα,β,γ. I assumed they would be rendered in the plugin likeKramers\[Beta], etc, (just like in Workbench), so it wouldn't work for me. – QuantumDot Nov 30 '16 at 17:51