This is such an aggressive way of saying something unhelpful. Visual/information/interaction. design -can- be an important part of an app team. I also think calibre is clunky and many of their interactions inelegant. That it’s also ugly is not irrelevant - reading is or can be an aesthetic experience too. I’m grateful it exists but like Anki I really wish someone with real design skills could help them polish the rough edges - that would make it a pleasure to use rather than just ok.