Update serialisation test to include new UI image size
Update serialisation test to include new UI image size

SpontaneousCMS/spontaneous,magnetised/spontaneous,opendesk/spontaneous,SpontaneousCMS/spontaneous,magnetised/spontaneous,opendesk/spontaneous,magnetised/spontaneous,opendesk/spontaneous,mediagreenhouse/spontaneous,SpontaneousCMS/spontaneous,mediagreenhouse/spontaneous,mediagreenhouse/spontaneous