How to show a plash potion effect on entity hit?

Hello, I was wondering if it's possible to display the healing splash potion effect when a player is hit to make it look like blood and how would this be done? I have added an image below to show you what effect I'm talking about.
thanks
edit: although the harming splash probably looks better to use :3

 

Well, what have you tried? You need to show us your previous attempts.

 

I haven't had any previous attempts because I have no idea if it's possible

 

Then this is the wrong section.
However, you can re-implement the SpellParticle and set whatever color you want

Spoiler: SpellParticle.php

PHP:

<?php

namespace your\namespace;

use pocketmine\level\particle\GenericParticle;
use pocketmine\math\Vector3;
use pocketmine\network\mcpe\protocol\LevelEventPacket;

class SpellParticle extends GenericParticle {

   public function __construct(Vector3 $pos, $r = 0, $g = 0, $b = 0, $a = 255) {
      parent::__construct($pos, LevelEventPacket::EVENT_PARTICLE_SPLASH, (($a & 0xff) << 24) | (($r & 0xff) << 16) | (($g & 0xff) << 8) | ($b & 0xff));
   }

   public function encode() {
      $pk = new LevelEventPacket();
      $pk->evid = LevelEventPacket::EVENT_PARTICLE_SPLASH;
      $pk->position = $this->asVector3();
      $pk->data = $this->data;
      return $pk;
   }
}


Spoiler: Creating a SpellParticle

PHP:

$red = 230;
$green = 0;
$blue = 0;
$level->addParticle(new SpellParticle($location, $red, $green, $blue));


Or you could just send a LevelEventPacket and not create a new class for SpellParticle