That would be critic damage not elemental critic damage is in blue too

ya think i got it figured out, its element damgage.. but its element damage + buffs. so you got iruka + 1st hokage + fire main buff thats 140% buff - 20% water making 120% elemental damage? idk im just trying to figure out the math. im water main should have +20% fire main but fire main is doing 4k elemental damage to water types... guess thats the only thing that makes since

crit damg is RED normal damg is yellow

Elemental damage is coloured blue and so is critical damage. Blue damage numbers means extra damage

Red damage numbers mean nothings its just a visual queue meaning that the ninja has taken lots of damage.
Normally less then 1000 gives yellow while over 1000 gives red and that all means nothing.

you will know if it is elemental damage bonus if there's a text below the numbers

blue damage means critic damage because you can get this blue damage with a tai attack so its not elemental damage