That is frustratingly poor contrast.
Here is what mine look like http://imgur.com/HLIVXQ6
You can click settings again to change font sizes, font family, colors, etc.
However, software that is 100% perfect is pretty much impossible to write, and if you think there's a systematic issue, please file a bug, so it can help others in same situation.
The bug reports I've submitted to google have been ignored, and that's a frustrating distraction from what I'm paid to do. Maybe if you submit one yourself, somebody will pay attention, because google is paying you to work on youtube, and hopefully they will take you more seriously than their users.
