If I could change the shade of yellow or orange (it looks brown on my laptop but orange on my ipad), then that would at least ameliorate the problem in the first post. The second post was referring to the choice of the six colours in the draw. Especially when much of the tool's usage is to highlight personal notes and pdf's. I understand that in many cases opinionated software works great in that it's less one choice that the end user needs to worry about so they can get on with the task at hand, however colours are such a personal decision, it strikes me as something that should be easily customisable by the end user. This would at least allow the user to select their favoured colour without having to navigate through the colour draw each time they change tool. The yellow colour looks dull across the different screens I use it on (MBP retina, ipad, iphone) and it would be handy to either be able to customise the default colour or have it remember the colour last selected for the highlighter tool and switch back to that.