general: Use Enum subclass for Colors

flatpak-dev.py

@@ -31,12 +31,13 @@ import venv
 
 from urllib.parse import urlparse
 from urllib.request import urlretrieve
+from enum import Enum
 
 FLATPAK_REQ = "0.9.2"
 
 scriptdir = os.path.abspath(os.path.dirname(__file__))
 
-class Colors:  # pylint: disable=too-few-public-methods
+class Colors(Enum):
     HEADER = "\033[95m"
     OKBLUE = "\033[94m"
     OKGREEN = "\033[92m"