Postgresql array column types in python peewee orm

gistfile1.py

from peewee import *

db = PostgresqlDatabase(None)

# custom type for postgres Text[] array column
class TextArrayField(Field):
	db_field = 'Text[]'
	def db_value(self, value):
		return value

	def python_value(self, value):
		return value

class BaseModel(Model):
  class Meta:
    database = db

class ProductType(BaseModel):	
	name = CharField()
	sysname = CharField()

	class Meta:
		db_table = "product_types"


class Product(BaseModel):	
	name = CharField()
	sysname = CharField()
  	sku = CharField()
  
  	# Text[] array column
	image_colors_hex = TextArrayField()

	product_type = ForeignKeyField(ProductType, related_name="product_type")

	class Meta:
		db_table = "products"