TL;DR It's really annoying when pipes with two different fluids auto-connect on placing a pipe segment, so have placement logic disallow placing a pipe segment if it would connect segments that contain two different types of fluid. What ? This is NOT Flow Control (in which one places specially-shap...

TL;DR Provide Ctrl+F search to highlight matching labels (icon or text) in the mini-map view. What ? The user opens the mini-map, sees a map full of markers and labels but doesn't know where to find the engines, hits Ctrl+F, searches for the engine image (same selector as for creating an image labe...