When try to select color of Layer in the bottom part, color appears only partly, and impossible to select "OK" or "Cancel". And also, why "Esc" do not close color picker? It is just basic UX paradigm! Make it posible!
BTW. Why is it impossible to past image directly in Topic? Make it easy for your customers to report problems. Your current "Image Link" option is awful. I'm not HTML programmer to do all that staff just to upload image.