I can see this question already has an accepted answer, but I've got another suggestion that could help, specifically with eye strain. I've seen people use a screen shield like this to help prevent eye strain. I assume there are cheaper options, this was just the first I found. The blue light is really what you want to reduce and you can only do so much with color settings on the monitor. This, paired with your accepted answer may just help you avoid unnecessary eye strain.
Please check out this study and its sources for more on how tinted glasses and screen shields prevent eye strain. Or this one. Or this one.
