// TODO: translate the following.
// 'form.profile.12_hours' => '12 hours',
// 'form.profile.24_hours' => '24 hours',
+// 'form.profile.show_holidays' => 'Show holidays',
// 'form.profile.tracking_mode' => 'Tracking mode',
// 'form.profile.mode_time' => 'time',
// 'form.profile.mode_projects' => 'projects',