What it does: Makes websites grayscale, then inverts it.

This affects everything (except video and probably any embed objects). Affects images as well.

Page scrolling speed is slowed when this style is active.

How to use: When you come across a website that is too dark/light, you add the website to the list of affected sites to make it opposite of what it currently is - dark becomes light, light becomes dark.

Play with the values to whatever you prefer. You can delete brightness and contrast properties in code to slightly increase scrolling performance.

Use it on sites that mainly have text content.