Go to the Github page to download:
https://github.com/opp/gpx_speed
Its easier to publish updates and new instructions to just one site.
Changes:
- Using custom font (also included the font file)
- Slightly transparent text & background / opacity changes
- Default is set to KMH, as it was supposed to be
- Added comments in the code so you can adjust position, size, etc. to suit your standards (AC documentation is not great and I don't play enough to justify spending time looking into making a config menu for this)