from django.core.management.base import BaseCommand
from zephyr.models import StreamColor, UserProfile, Subscription, Recipient

class Command(BaseCommand):
    help = """Reset all colors for a person to the default grey"""

    def handle(self, *args, **options):
        if not args:
            self.print_help("python manage.py", "reset_colors")
            exit(1)

        for email in args:
            user_profile = UserProfile.objects.get(user__email__iexact=email)
            subs = Subscription.objects.filter(user_profile=user_profile,
                                               active=True,
                                               recipient__type=Recipient.STREAM)

            for sub in subs:
                stream_color, _ = StreamColor.objects.get_or_create(subscription=sub)
                stream_color.color = StreamColor.DEFAULT_STREAM_COLOR
                stream_color.save()

Add a management command to reset your stream colors to the default.