This extension changes the "title" with an image.
Customize the css:
In the new release(0.1.1) was added the Css configuration field
You just need to add the attributes followed by
In the next release i'm planning to add some easy ways to customize the logo, like width and height field in admin's panel.
you can see the project at github
composer require santiagobiali/flarum-ext-logo
You can use an external link to the image or an local one.
If you are using an local one you need to add the link like this:
/flarum/assets/logo.png if you are hosting from localhost or it wil brake when you go to a post.
Just go to the admin's panel and configure it.