Thank you for your feedback!
Do you think it's that important to open the preferences via a swipe gesture? You don't need to access the preferences often so I think it currently works fine. However, maybe it's a "nice to have" feature for the future...
We don't want to put it on the top right corner. However, if more people don't like the star icon in Favorite mode we might remove it from there completely as you suggested.
We are aware of this and already added this to our to do list!
I just checked it here but the images looks fine for me. Does it happen with all favorites or only specific ones? You're using an iPhone, right?
Thank you again for your feedback,