Maximising the accessibility of a website is always of great importance. As well as the developers improving accessibility there are also a plethora of tools available that increase the accessibility client side. I always encourage the use of client side tools as it makes for a richer more seamless experience.
In the quick look video below I demonstrate the ability of Hacker Vision for Google Chrome. Hacker vision is an extension which is capable of intelligently inverting websites, by which I mean will only invert text and background elements rather than images. This is a vast improvement over say the invert feature built into Apple hardware, as the built in invert operates at the hardware level the entire screen is inverted. Resulting in such elements as images becoming inverted. Hacker Vision negates that and makes for a far more pleasant web experience for the low vision user.
The video also demonstrates the different forms of zoom available to the user, and quickly compares window zoom versus font scaling. I believe font scaling to be incredibly powerful on the client side and is something I will touch on in a subsequent ThoughtCast.
I chose to demonstrate these features with Facebook, mainly because Facebook is often cited as having poor accessibility. I do not believe this to be true I believe a fairer assessment would be to say Facebook is doing a reasonable job and it plays relatively well with client side tools. However, it must be noted that these client side solutions will work on any website and in the case of Hacker Vision can even be tailored to invert only the websites you wish it to. Therefore, a website that does have a dark theme would not be inverted.