To change your theme on tumblr, you can try going to settings and then clicking customize my blog, or you can try going to different blogs, selecting which one you like and then pressing install.
It's easy to customize your blog's theme on the Tumblr app for Android. Just go to your blog page and click Edit at the top. From there you can change your theme and customize its colors and fonts
You can't change the font in your Tumblr post because it comes with theme itself. You would have to change your theme to get the different options with the fonts that you like.
yes
things change. there are probably plugins for the old theme
You can't sorry :/ You can only do it from you computer.
You shouldn't steal Tumblr themes! :PP
Making a tumblr theme is not that easy. But there are sites that offers good quality themes, with affordable prices.
Google "perry the platypus tumblr theme".
it Really Depends on The Theme. it's Nothing Like Myspace. You can't Just Edit it . Unless You Know How To Change The HTML For The Theme.
Learn HTML.
The best thing to do is to message the user on Tumblr and ask where they found their theme or who made it.
The theme used on that site is called Optica