Hey Sylvio,
I will go over the questions in the same order:
1). This is out of the scope of the theme back-end capabilities, yet I will try to help out: one needs to alter the “rewrite” array for the code which generates the “project” custom post type. This is located in the theme’s functions.php file – I’ve prepared a custom one for you, which contains the necessary changes (line 383). Please unzip the archive, and upload the resulting file into the theme folder via ftp (/wp-content/themes/Tokyo). After that you might need to flush the permalink cache – you can do this by going to the “Settings -> Permalinks” admin section, changing the radio button to any other setting than your current one, saving the settings, and then resetting the radio to the one you had originally (“post name” I presume).
2). I agree, this would be a good addition to the theme’s functionality! I’ve prepared an updated file – please download this archive, unzip it, and upload the contained file into the following folder:
/wp-content/themes/Tokyo/includes/supersized/includes/
replacing the existing file. Then refresh the website – the background choice options should now appear on the projects as well.
Please let me know if the above information helps achieve the desired outcomes!
Sincerely,
Andrii / Satori Studio