moving the box name a little

+ fixing some color typos and trying to bring the arrows bac k (without the frame), without success....
changing text editor colors
darker vertical lines
switching hover color to gray - should be blue when selected

(but I couldn't find that in 2 different places, which should be the case...) - also left the old blue value
color change for NetworkTree header and TimeBar

in order to unite them
improving the layout