There are no associated Bitmaps with GSD file, is this intentional
It may vary between devices but i just checked a few profinet devices support pages and the files and document pages have .zip files that include the GSDML and a ,bmp file. What deivices are you looking at?
https://www.anybus.com/technical-support/resources/downloads-and-documentation?ordercode=abc4013
I looking bitmap for two devices - AB7808 and AB9001
You should be able to enter the article number into the quickfind search from the support page to fine the device.
This article covers this in detail. https://support.hms-networks.com/hc/en-us/articles/6368450367762
I believe the GSD for the Profibus master is built into the Nettool setup software.