New Highlighter: Imminent Decay

This highlighter uses the fill colour to indicate portals with resonators which will decay within the next 24 hours. Red = the portal will completely decay, orange = the portal will drop all links (i.e. drop below three resonators), yellow = one or more resonators will decay. Red takes priority over orange, which itself takes priority over yellow. Useful for prioritising recharges, especially remotely.