Hmm, I wonder why it crashed?
I have added some svg images, both within <img> tags and in-line.
I saw some problems with those, in fact one (an svg test card) gave
so many errors in Flight Crew and looked so bad on the Mini that I
took it out again, so I'm thinking svg support is a little strained at best.
Sorry to hear about Sigil, I'm using 0.96, which I built from the sources, so
I won't be upgrading for a while.
I don't use ADE, I check appearance in Sigil, Calibre's e-book viewer
and on the Mini. That already gives me plenty to deal with