Can anyone confirm, once and for all, whether it is possible to hide or change the colour of the 'Active Cell Border' and the 'Drag Handle' of a selected cell, i.e. the thick border that appears around a cell when it is clicked on and the little black square in the bottom right hand corner of the selected cell. I have read loads and loads of posts on this topic, but not one actually confirms if this is a) possible and b) if so, how to do it!

Many thanks