Many online books at learning.oreilly.com do not correctly support Dark Theme, due to the text font being dark as well. Solved!
Many online books at learning.oreilly.com do not correctly support Dark Theme, due to the text font being dark as well. This very simple extension makes the dark text lighter, giving it greater contrast for easier readability. In v1.1 I added the functionality to replace the ridiculously long and cumbersome phrase "Dynamics 365 for Finance and Operations, Enterprise edition" with simply "F&O". If anyone uses this extension and has things they want to shorten, let me know and I could do a little more work to make things like that configurable.
I contacted O'Reilly and offered to build this extension for them. They declined, moaning and groaning about all the testing and QA and vetting they would have to do. Boohoo. I built it anyway. It's like 10 lines of code, probably the simplest Chrome extension ever built.
This is not an official product of O'Reilly, and was not built by them - but will help anyone who uses learning.oreilly.com. Apparently this large company with tremendous resources couldn't solve this simple problem themselves, that I solved in 2 hours.
Hey O'Reilly: You're welcome.