• in linux with xfce and dark background, the icon is barely visible
  
• the GUI should have an option to close and only appear notification icon
  

@aiff22 Hi，
I try to train with my own data, but when level1 and level0, the MS-SSIM loss be Nan (actually MS-SSIM loss is not used at level1).
So I run the training code in debug mode, I found that, in some case, the SSIM could be negative.
I found the code of MS-SSIM implements at jorge-pessoa/pytorch-msssim and discussions about this problem

Just noticing that the System Log pages look wonky when the screen resolution has a width less than 768 pixels.