In my PDF document, while opened in the PDF viewer (AR), I would like to have coloured text as hyperlinks instead of boxes.
So I set the package option ocgcolorlinks with hyperref, because links should come out as black (the default text colour) when printed on paper.
However, if I run latex on my document source (I am using the dvips+ps2pdf route) I get the warning message
Package hyperref Warning: Driver does not support `ocgcolorlinks', (hyperref) using `colorlinks' instead on input line 66.
and I get coloured link text on paper.
Recently, Ghostscript was added support for OCGs (PDF Layer). In theory, it should now be possible to make the ocgcolorlinks option functional with dvips+ps2pdf.
How difficult would it be to implement this? Moreover, it would be nice to make ocgcolorlinks compatibile with the ocgx and ocg-p packages at the same time, as shown here for the other workflows (dvipdfmx, xelatex). (Those packages are used to put text on PDF layers.)