Having played through the early game more times than I can count, the tech jump from skip drive straight to warp bubble generator always struck me as too sudden. You can rush two relatively cheap techs and move your empire from limping across a star system to jumping between stars in a few seconds ...

I have trouble with the vanilla research icons, so I made a set of white ones closer to what the rest of the game uses (most of them are taken from elsewhere in the game).

File is here on my github .
Load with the mod loader.
If using crunched textures, either these icons need to load after those ...