I was wondering the same thing - the author probably has plans to do it, but would require some new graphics / artwork. I did find this other mod though... maybe it would take care of it: https://mods.factorio.com/mod/k2sa-tech-card-icons?from=search
I prefer to keep planetary science packs as bottles to make them distinct and consistent with other mods.
But i have plans of changing them into tech cards once i make an official modpack
thanks for answer!
@Kaehl0311, yeah well;
Its not about graphics for the things, its more about recipes. The uniformity of recipes of the sci packs in K2 always appealed to me.