Just what I was looking for! Thanks for this add on. For me youtube.com would still be extremely important. I set the blue window with the text to white and deleted the text, it's too embarrassing to have the big blue text on my screen.

I'll add youtube to the list! Hm, I hadn't thought of that angle, maybe a white background and small text is a better default

Could we customize the splash screen colours and text?

Yes it's in the settings! I could add support for arbitrary CSS as well if you'd like :)