Sorry for version 0.08 which was fully broken for over a month.

I added an icon picture for the mod. It's the only thing I changed. Except, apparently I added it to a version in the wrong folder and uploaded it without testing it. Then, because I'm not playing very much, didn't test it from the ingame mod installer either. My local version was fine - it was just the uploaded version that was borked.

Anyway... I should have tested it again and didn't.
Some 900+ people downloaded it and must have thought me an idiot (they'd be right).
... oddly nobody actually complained... I'd have expected at least 1 person to visit the mod portal.

Not to worry... it's fixed now.
On the upside, I discovered the RAW Prototype definition wiki (https://wiki.factorio.com/Prototype_definitions)... which should make life easier when I finally try to fix the train lights that have been bugging me.