{
  "format_version": "1.10.0",
  "particle_effect": {
    "description": {
      "identifier": "minecraft:pause_mob_growth",
      "basic_render_parameters": {
        "material": "particles_alpha",
        "texture": "textures/particle/particles"
      }
    },
    "components": {
      "minecraft:emitter_rate_instant": { "num_particles": 6 },
      "minecraft:emitter_lifetime_once": { "active_time": 1.0 },

      "minecraft:emitter_shape_box": {
        "half_dimensions": [ 0.34, 0.04, 0.34 ],
        "offset": [ 0.0, "0.25 + Math.random(-0.02, 0.02)", 0.0 ],
        "surface_only": false,
        "direction": [ 0.0, -1.0, 0.0 ]
      },

      "minecraft:particle_initial_speed": 0.30,
      "minecraft:particle_lifetime_expression": {
        "max_lifetime": "Math.random(1.3, 2.0)"
      },
      "minecraft:particle_motion_dynamic": {
        "linear_acceleration": [ 0.0, -0.08, 0.0 ],
        "linear_drag_coefficient": 0.04
      },
      "minecraft:particle_appearance_billboard": {
        "size": [ "Math.random(0.12, 0.16)", "Math.random(0.12, 0.16)" ],
        "facing_camera_mode": "lookat_xyz",
        "uv": {
          "texture_width": 128,
          "texture_height": 128,
          "uv": [ 16, 40 ],
          "uv_size": [ 8, 8 ]
        }
      },
      "minecraft:particle_appearance_lighting": {}
    }
  }
}