Let's make GUI beautiful at last!
- increase margins/spaces - at the moment all over UI feeling is "cramped"
- avoid using CAPS! - it is less readable and wrong by sense (that is caps are to cry rather to say)
- avoid too different font sizes - say, date and day of week can be the same size as task/event itself. We have other ways to mark day headers out. I guess slightly different background brightness is the less distracting. The same is applicable for the titles on right panel (calendars and so on managing).
- avoid removing "just list" presentation mode on tablets - for portrait mode it would be very handy.