For what it's worth, that's configurable under the gear icon. I changed it from "25/3 any technology" to "1000/100 fiber" and most of the green dots on the map

For what it's worth, that's configurable under the gear icon. I changed it from "25/3 any technology" to "1000/100 fiber" and most of the green dots on the map area I was zoomed into changed to red.