1) Missing locale for the damage/speed bonuses
2) Check your research cost formula for infinite science, it starts with only 15 science packs!?
Ah, I think I know what it is... The problem is you can't name the techs with roman numerals... "Tesla-coil-VII". This does not work, it has to be like this "-7"
3) Having both damage and speed in the same tech is weird, makes the thing very overpowered very quickly.
4) {"automation-science-pack", 1.5} ... how can you have a flask and a half in your lab ? That is weird. Just use "1" on all requirements
5) The graphics for damage upgrades has no translucent channel, pure black background, and it looks really bad in-game. Use an editor capable of saving rgba PNGs