42-42-564
You need to buy the theme in order to get the code.
Every Theme allows a specific size of header. Check your theme's code.
you just look on the tumblr website in the theme section. if you dont find anything you like, you can google 'tumblr themes' and search for what your looking for and just get the code. Then you just have to paste it into the custion HTML section.
Customize>Theme>Custom HTML>Paste your layout code
Add infinite scrolling code to your theme.
No! You just edit the HTML code c:
It depends on the theme you have. If you have the basic one (redux) it gives you the option of hiding them.
It looks as if xstillfly is currently using a customized theme. This means that somebody personally created the theme, and it isn't available in the Tumblr theme garden. Although this theme isn't publicly available, you might try contacting the user and asking if they'd be willing to share the code for their theme so you may using it.
You shouldn't steal Tumblr themes! :PP
I think you mean usuarios online. Just personalize your code and copy paste it on your info or theme.
Making a tumblr theme is not that easy. But there are sites that offers good quality themes, with affordable prices.