One of the comments for pull request #234 mentions that the colors
for sleep and poison are backwards. Yellow dragons had green breath.
Green dragons would have had yellow breath if they used the normal
zap symbols, but they use the poison cloud one which is green so
they had green breath. I rarely have color enabled and had never
noticed. (At the moment I can't find where the switch from zap to
cloud is being done.)
Pull request #234 is based on #231, about control of the shield
effect animation when resisting. But it changes struct flags so
would break 3.6.x save file compatibility.
389c496055