The most recent version of protograf - a desktop tool designed to help you create boards, tiles and cards for your prototype - has just been released.
Quick blurb: protograf is a free, open source, cross-platform tool for scripting a design. It is not web-based and does not have a GUI, but offers sensible out-the-box options to get started on your design, while allowing a reasonable range of customization options to create neat and usable graphic layouts.
This latest version adds more support for drawing lines around hexes on hex-grid maps as can be seen in the attached image.
The online documentation for protograf is available here:
https://protograf.readthedocs.io/
Please feel free to make suggestions and give feedback. I am also happy to help folks with their scripts.
