The prepare zoom block can currently be used at the start of each scene to make scene transitions the correct size when zooming (otherwise they are messed up)
OK.
This extension allows zooming out. Due to the different rendering method of tiles on flash, it would be difficult (and exhaustive) to zoom out and then rerender which is how I would have to do it testing this way. Thus I have not put effort into getting this extension to compile on flash.
Of course, the zooming-out feature is very important. I think avoiding such feature on Flash and HTML5 only and allowing it on other formats would be much more useful, less drastic and less problematic than making this extension totally incompatible with both formats. Otherwise, after exporting any game to other formats, when we need to export it to Flash or HTML5, we would have to disable this extension and remove its blocks, which is an inconvenience.
Could you check whether the same thing happens for actors attached to the HUD as that happens to text?
Tested, actors seem to work well.
Before I released this I had a version that worked differently but made the HUD layer display above the transition layer. Would this be preferable for you?
Yes, this would be preferable because displaying texts is always necessary and essential in any game.