text: var COLORS = require('./values').colors
  var GRADIENTS = require('./values').gradients
  var keystone = require('keystone');
  var Types = keystone.Field.Types;
  
  /**
   * ActivityCategory Model
   * ==================
   */
  
  var ActivityCategory = new keystone.List('ActivityCategory', {
  	autokey: {
  		from: 'name',
  		path: 'key',
  		unique: true
  	},
  });
  
  ActivityCategory.add({
  	name: {
  		type: String,
  		required: true
  	},
  	buttonColor: {
  		type: Types.Select,
  		options: COLORS,
  		emptyOption: false,
  		note: 'Refer to https://mdbootstrap.com/docs/jquery/components/buttons/'
  	},
  	headingGradient: {
  		type: Types.Select,
  		options: GRADIENTS,
  		emptyOption: false,
  		note: 'Refer to https://mdbootstrap.com/docs/jquery/css/gradients/'
  	}
  });
  
  ActivityCategory.relationship({
  	ref: 'Activity',
  	path: 'activities',
  	refPath: 'categories'
  });
  
  ActivityCategory.register();
  