Changing the Wordpress dashboard logo (multisite) - php

Question

I'm the superadmin for a smaller network of multisites for a client. All network sites have the same name so organizing all the sites gets a bit of a cluttered mess:
Changing the titles of each site is not an option (Since of some SEO-optimization and smiliar).
I've only found guides on how to change ALL the dashboard logos to one other (via wp_enqueue_style in functions.php), but nothing when using multisites. Any ideas?

Answer 1

This might be posible to do with CSS.
Try to target each class, or if they all got the same class, you can use :nth-child operator.
.your-class:nth-child(1){
// CSS to change logo
}
.your-class:nth-child(2){
// CSS to change logo
}
.your-class:nth-child(3){
// CSS to change logo
}
Below is some code for inserting css to the admin area. Place this code in the functions.php.
I did a test on a regular site, and it worked, but have not tested it on a multisite like yours.
Hope it works, and good luck :)
function custom_admin_logo() {
echo '
<style type="text/css">
#wpadminbar #wp-admin-bar-wp-logo > .ab-item .ab-icon:before {
background-image: url(' . get_bloginfo('stylesheet_directory') . '/images/your-logo.jpg) !important;
background-position: 0 0;
color:rgba(0, 0, 0, 0);
background-size: cover;
}
#wpadminbar #wp-admin-bar-wp-logo.hover > .ab-item .ab-icon {
background-position: 0 0;
}
</style>
';
}
add_action('wp_before_admin_bar_render', 'custom_admin_logo');