A widget exists that highlights teammates lacking energy or metal in the player list. This helps you identify who on your team cannot produce units due to resource constraints.
Tags: beyond all reason, widgets, resource indicator, playerlist, settings
Find the widget in the BAR community repository. Once installed, it appears in the Custom tab of in-game settings. Enable it there before joining a match.
User widgets are typically disabled in PvP games for balance reasons. Check the widget status before each match to avoid assuming it is active when it is not.