Algorithm:
1) if you don't drink pots/activate items - it doesn't showed
2) if you drink particular potion - only one indicator showed. For example, if you drink res heat potions - only red star appeared.
3) when effect is close to end (5 turns left), stars become to blink or maybe fade in color. So you could estimate essential time to drink another potion if its needed.
It would be great to have such feature!
