XO Theme has all fonts included within the theme except for the header banner font which is actually an extra created .png file image.
Headings Font: Old Standard TT, Text Font: Cormorant Garamond, Menu & Other: Josefin Sans
The header banner font is called Milky Way. It’s the perfect addition to the clean and minimal fonts of the headings and body. You can get it here:
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We recommend to upload post images with a width of at least 770px. Optimal images sizes should not exceed a width of 1200px.