Renewed crosshair for throwables featured in the 17.2 Update
In the 17.2 Update the developers of PUBG: BATTLEGROUNDS have updated the crosshair when throwing grenades. It now shows which grenade throwing mode the player has chosen - the upper (long-range) or lower (short-range).
Recall that in update 17.2 the developers added a grenade timer to the game - after pulling the pin there is a countdown to the explosion.
The update also added to the game's client files skins for smoke grenades - purple, yellow, and blue. It is likely that the skins will change not only the models of grenades but also the color of smoke.