template tag to render boolean as a nice icon

boolean_as_icon.py

from django import template

register = template.Library()

@register.filter()
def bool_me(value):
    '''
    Renders Boolean as a nice FontAwesome Icon.
    :param value: 
    :return:
    '''
    if value is None:
        return '<i class="fa fa-question fa-lg text-muted"></i>'
    elif value:
        return '<i class="fa fa-check-circle fa-lg text-success"></i>'
    else:
        return '<i class="fa fa-minus-circle fa-lg text-danger"></i>'