You're going to want to create your own theme (See https://moosocial.com/wiki/doku.php?id=documentation:create_first_theme for how to do this) because an update to the default theme will overwrite your changes.  Let's assume you created one called "MyTheme" using the instructions above.

 

Grab the contents of the following file:

 

app/View/Elements/misc/logo.ctp

 

Create a new file in the following location:

 

app/view/Themed/MyTheme/Elements/misc/logo.ctp

 

From there, edit lines 4 and 6 of this file to change the logo URL.

You're going to want to create your own theme (See https://moosocial.com/wiki/doku.php?id=documentation:create_first_theme for how to do this) because an update to the default theme could possibly overwrite your changes.  Let's assume you created one called "MyTheme" using the instructions above.

 

Grab the contents of the following file:

 

app/View/Elements/misc/logo.ctp

 

Create a new file in the following location:

 

app/view/Themed/MyTheme/Elements/misc/logo.ctp

 

From there, edit lines 4 and 6 of this file to change the logo URL.