message: Using lowercase for labels
diff: @@ -81,22 +81,22 @@ const defaultTranslations = {
  };
  const defaultOperators = [
  - { name: 'null', label: 'Is Null' },
  - { name: 'notNull', label: 'Is Not Null' },
  - { name: 'in', label: 'In' },
  - { name: 'notIn', label: 'Not In' },
  + { name: 'null', label: 'is null' },
  + { name: 'notNull', label: 'is not null' },
  + { name: 'in', label: 'in' },
  + { name: 'notIn', label: 'not in' },
  { name: '=', label: '=' },
  { name: '!=', label: '!=' },
  { name: '<', label: '<' },
  { name: '>', label: '>' },
  { name: '<=', label: '<=' },
  { name: '>=', label: '>=' },
  - { name: 'contains', label: 'Contains' },
  - { name: 'beginsWith', label: 'Begins With' },
  - { name: 'endsWith', label: 'Ends With' },
  - { name: 'doesNotContain', label: 'Does not contain' },
  - { name: 'doesNotBeginWith', label: 'Does not begin with' },
  - { name: 'doesNotEndWith', label: 'Does not end with' }
  + { name: 'contains', label: 'contains' },
  + { name: 'beginsWith', label: 'begins with' },
  + { name: 'endsWith', label: 'ends with' },
  + { name: 'doesNotContain', label: 'does not contain' },
  + { name: 'doesNotBeginWith', label: 'does not begin with' },
  + { name: 'doesNotEndWith', label: 'does not end with' }
  ];
  const defaultCombinators = [{ name: 'and', label: 'AND' }, { name: 'or', label: 'OR' }];
  