<?php
/* meta informations for the theme, see below */
+ use Friendica\App;
+
function duepuntozero_lr_init(App $a) {
$a-> theme_info = array(
'extends' => 'duepuntozero'.
If the original author is no longer working on the theme, but a maintainer has taken over, the maintainer should be listed as well.
The information from the theme header will be displayed in the admin panel.
+The first thing in file is to import the `App` class from `\Friendica\` namespace.
+
+ use Friendica\App;
+
+This will make our job a little easier, as we don't have to specify the full name every time we need to use the `App` class.
+
The next crucial part of the theme.php file is a definition of an init function.
The name of the function is <theme-name>_init.
So in the case of quattro it is