Hi Scott, all,
I think I solved the problem with "pale" colors. It depended on a wrong color scheme inherited from ClassHelpTemplate (which is pale too, indeed).
More, also UGenHelpTemplate has a wrong syntax colorization, if compared to the syntax colorization provided by sclang command.
(this is indeed a dangerous aspect in a help template :) )
I also propose the Helper help file (as usual: raw material). If the Helper classes are committed, I would think that it should be strongly suggested in the documentation style guide to use them instead of templates, which should be shown just as examples. This would enforce consistency, I guess.