How to invert your screen colors

If you use [HASH]Linux, as I do, you can invert your screen colors by installing `xcalib` and then using the following command on the command-line:

If you get the following error, do the solution that here follows it: `Error - unsupported ramp size 0`

askubuntu.com/questions/930084/xcalib-error-unsupported-ramp-size

Create this filepath (directory and all), and then add the section below to it: /etc/X11/xorg.conf.d/20-intel.conf


Section "Device"
 Identifier "Intel Graphics"
 Driver "intel"
EndSection

Note that you may want to undo this upon locking your screen. In [HASH]Xubuntu, I made a script with the following contents to use as my screen-locker (this uninverts the colors, if they're inverted, and then locks the screen):

xcalib -c
xflock4

Anyway, I usually have my colors inverted (so, that's the reason this forum has a light background and dark text; I normally prefer the opposite color-scheme). I have light-sensitivity, which gives me a wide variety of issues that do not particularly relate to my eye health. The amount of light matters to me more than the kind of light (so, often, the less light the screen blares at me, the better); however, fluorescent light is particularly an issue (and incandescent is the next most problematic). I prefer halogen lights for house lighting, and e-ink or LED displays for computer devices.

If you use Windows or iOS, please respond and let us know how to invert the screen colors in your operating system.

You can do it on a Kindle Fire HD 8 version 6, I've found. There's no fast way to do it as far as I know (you have to go into your settings). I usually just leave them un-inverted or use blue shade instead. My lament with blue shade is that it makes blacks produce more light.

Although I love e-ink displays (which don't have to produce any light at all), I hardly ever use them anymore, since when I got one of the first Kindle Paperwhites, it seemed to give me (temporary) vision issues; so, I stopped using it. I think it may have something to do with the touchscreen. My Kindle keyboard (which I no longer own), without a touch screen or built-in light, did not give me eye issues, and was easier to read (and I loved using it). So, I read on my Kindle Fire and/or desktop computer instead. Hopefully the newer Paperwhite models wouldn't give me issues.

[HASH]lightSensitivity