Change Page/Background Color
My eyes are a bit sensitive to the default white color of eink devices (without backlight). So I was wondering if the Xteink default software or CrossPoint Reader lets you change the page color. Like how the Kindle lets you change to a septia background mode (along with white and black options). KOReader also has something similar that you have to program some css code to use it. (Edit: The device I use to change the page color is a Boox Palma; it has no color capability AFAIK.)
I searched through the subreddit for any similar topics to this, but I haven't found any. If any of you all know, help would be much appreciated. Thank you
Edit edit: When I say septia, I'm talking about the devices best approximation of the coding I'm asking for: gray. Can I change the background or page color to gray and other different shades of it?