Website contrast tweak
Here's a way to improve the contrast of some of the pale gray elements on the website.
This only works in some web browsers, and it requires some setting up that takes a couple of minutes. For all the details see the document: Website Tweaks Overview
If you already have it all set up and you just want to install this tweak, here's the link: Install
If you want to customize the color after you've installed it, here's the settings page: Tweak Settings
For information about other tweaks, see the document: List of Tweaks
The main forum thread for all of this is: Web site tweaks
If you have comments or suggestions about the Contrast tweak in particular, feel free to reply here or send me a message.
@RarelyCharlie I have never liked the white font on blue background in the listener's chat box. It would really be great if you could develop a tweak to change the colors. 
Yes, I'm pretty sure that could be done. I've added it to my list. What colours would you prefer? They'd be customizable, but I'm interested in knowing what you'd choose.
@Harry53
@RarelyCharlie Black font on a light gray background would work.