I'm playing version 1.3.1.2 in Ubuntu Linux 18.04, using a GeForce GTX 950 video card and version 440.64.00 of the Nvidia driver.
Anyway, whenever I play the game full screen, there are red lines all over the screen that look like they're outlining some (but not all) of the pixels in the game's graphic. In fact, it seems like the lines happen if I play with any display scaling other than 4x or 6x; if I set it to one of those two in the game's settings, the lines go away, but at full screen (which is 1440p for me) or any other scale, they consistently appear. Any idea what might be going on? Image attached for reference.