\pocketmine\level\Level::setBiomeColor() does nothing to the biome color

Well \pocketmine\level\Level::setBiomeColor() does not change the biome/chunk color to something else ON GRASS. I'm trying to set the biome/chunk color upon joining the server, I don't know if that has to do with anything. I made sure with debugging that red, blue, or green is not greater than 256 or less than 0. Does anybody know a fix for this?

My code:

PHP:

/**
* Paints rgb of an image on a chunk
*
* @param Player $player
*
* @param integer[][] $rgb
*/
public function paint(Player $player, array $rgb){
    $r = count($rgb['r']);
    for($i = 0; $i < $r; ++$i) {
        $red = $rgb['r'][$i];
        $green = $rgb['g'][$i];
        $blue = $rgb['b'][$i];
        echo $red . '/' . $green . '/' . $blue . "\n"; #DEBUG
        $player->level->unloadChunk($player->x >> 4, $player->z >> 4);
        $player->level->setBiomeColor($player->x >> 4, $player->z >> 4, $red, $green, $blue);
        $player->level->loadChunk($player->x >> 4, $player->z >> 4);
    }
}


 

Just for setBiomeColor() or all of them?

 

"Yes"?? I know.

 

Ok, I tested now but still won't work. I changed the function:

PHP:

/**
     * Paints rgb of an image on a chunk
     *
     * @param Player $player
     *
     * @param integer[][] $rgb
     */
    public function paint(Player $player, array $rgb){
        $r = count($rgb['r']);
        $player->level->unloadChunk($player->x >> 4, $player->z >> 4);
        for($i = 0; $i < $r; ++$i) {
            $red = $rgb['r'][$i];
            $green = $rgb['g'][$i];
            $blue = $rgb['b'][$i];
            echo $red . '/' . $green . '/' . $blue . "\n"; #DEBUG
            $player->level->setBiomeColor($player->x + $i, $player->z + $i, $red, $green, $blue);
        }
        $player->level->loadChunk($player->x >> 4, $player->z >> 4);
    }