Updated backdrop images for USB sticks

At the London show, we noticed that the backdrop images on the ‘native’ and ‘emulator’ USB sticks looked pretty ropey on our show monitors when the RISC OS desktop was in a low resolution mode. Compression artefacts were very obvious.

I’ve uploaded better quality archives for both USB sticks and these are available from this page though please note that if you’re using the “native” USB stick as a working boot drive, the decompressed images will take up half your disc space! You’ll probably want to delete some of the ones you don’t like to free up some room in that case.