Tap the trash can icon on the left hand ... When you've selected a text box, you can bold, italicize or change the text style from a title, to header to body text. To change the font, see the ...

To rotate curve text, select the text box, and then click and drag the rotation icon that appears at the top of the text box.

How to Replace the Title Header in Tumblr ... then the HTML/Javascript gadget may be more suitable than a text box one. To remove a text box gadget from the layout template, click the small ...