Color target area on the right in green when dragging has began

[eMPee584]

Came to know this through a recent r0g event where usability of this tool was discussed. From my brief look at it, I find it quite nice already.. what immediately came as an idea to me when I had another look at the demo is that maybe the target area where modules are supposed to be dropped could make this visually more clear by changing color. Probably not a big impact but should also not be too hard to implement ; )

[timmwille]

@saisilinus can you share your screenshot drafts here?

I think we had these two approaches:

and

maybe @bmen can help with some colour decisions (also relevant to the colours of the overview page?)