I use Seamly2d on Windows 10 without any problems. I installed Ubuntu on my new laptop and then I installed Seamly2d with the commands:
sudo add-apt-repository ppa:susan-spencer/seamly2d sudo apt-get update sudo apt-get install seamly2d
When I use some tools, such as Point at distance and angle, a window will open. Usually in Windows 10 I can take the window with the mouse and move to see the paths below. But in Ubuntu I can’t do it, because all the Seamly2d window moves and change size.