It does now, but it didn't earlier. Honestly .. I wish I'd taken a screenshot .. there was NO download button at all, anywhere .. otherwise I wouldn't be writing this now, I'm a busy man .. server configs, forum configs, **** dude, anything for an easier life. A bug perhaps? Thanks for sorting it quickly, didn't really want to wait until the morrow.
@rustyparrot yes, but you can simply change it in admin panel.
Go to style properties > Node icons > and change in every tab node-sprite to other file name