biome color

i want to add a variant of colors to the foliage, yellow orange and red
  "temperature": 0.29999999999999993,
  "downfall": 0.8,
  "has_precipitation": true,
  "effects": {
    "sky_color": 7972607,
    "fog_color": 12638463,
    "water_color": 4159204,
    "water_fog_color": 329011,
    "grass_color": 11383680,
    "foliage_color": 16351261
  },
  "spawners": {},
  "spawn_costs": {},
  "carvers": {},
  "features": []
}```