V1.81 Beta just published:
Changes
New “light style” (see screenshot)
Improved temperature control
New arduino product id :0x003d
Some fixes
How to participate in the beta test:
http://gcodeprintr.dietzm.de/FAQ.html#beta
download isn’t available…yet 
Hi Mathias
Did it fix the bug regarding screen scaling on some devices?
Thanks
Adam
@Adam_Marshall no, will be in the next beta
Connecting (with 3 Tools heads) Uploading and Webserver work, motions works
looks good to me 