The way I read comics gets too much in the way with the flow feature. I also don't like how it looks, nor find a purpose for it. I know probably a lot of people use it, but I clash too much with it, so I'd love some sort of ticking box with enable/disable on the configuration menu!
I have added an option for disabling "show on mouse over", it is available in the develop branch:https://bitbucket.org/luisangelsm/yacreader/branch/develop
YACReader
