It is fairly easy……
You can use something like that…..
'name' => __('Home Prebuilt Layout', 'wpm_textdomain'),
'description'=> __('You can make a home page just like our demo using this prebuilt layout.
It will overrwite any existing content.', 'wpm_textdomain'),
'screenshot'=>'www.image.url',
Hope this helps.
Sabbir H
