>>6851280It's osx, but besides that it's probably something like ahoviewer, jpegview, honeyview, irfanview or any number of other image viewers.
http://nanami-tan.info/#MediaCheck that out.
Pic is me using jpegview (with titlebar hidden).
>>6851315Heck, windows already has keybinds for everything in the titlebar and I use an AHK script to let me drag windows around and resize them at will without using borders. Too bad titlebars aren't just optional on windows.
>>6851470Unfortunately, no. It's either Classic Theme Restorer or CSS.
>>6851581>how do i put on a home page a nice nice background?I'm not sure I understand the question.
>I installed custom youtube styleOkay.
Do you want to set a custom background for youtube's homepage? Or do you want to use a custom background for your firefox homepage?