Hi Scott,
I created the graphics first and then uploaded them (sized to 250px wide). It’s the long way around and so isn’t very convenient but I can’t figure out a better way. 馃檨
I also have a problem where if you upload an image at full width for it to crop (e.g. the greyscale lion one) the gallery box leaves a white space on the right which looks no good – it doesn’t fill the whole square!