How to Make a Logo?

do you mean a favicon.ico?

Ermm.. Yeah I guess so.

How would I do that?

Thanks,

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First, make a photo which would look good at verry small sizes, which to be a square….. Then, search on Google “Favicon generator” , put you picture, save the favicon.ico in PC, and then follow a tutorial how to put it on your blog: https://www.amoswong.com/how-to-add-a-favicon-in-wordpress-blog.html

Good luck ! ??

How do I locate the header.php file?

The theme I am using is Mystique ??

It’s labeled as Header under Appearance>>Editor>>Header.PHP