Can you please try running the Repair function on the launcher. To do this please open the launcher and then click on the Cog icon.
Thank you for your continuing patience in this matter.
Done. Nothing changed as i thought. The software is making the bitmap not stay on integer. I experience such things while working with bitmaps in adobe flash. The software is trying to deal with bitmap on fraction of pixel and smooth it. And then we get blurry loading screen and a waste of such a nice, sharp details artist have made.