How to show nophoto in custom card banner

Hello everybody,

at the moment I am developing a module with which you can call your own PHP page via the left menu. There is a card with two tabs, which should contain the banner common for Dolibarr. I create this with the command “dol_banner_tab()”, whereby I pass an object of a self-created class in the first parameter.

My question now is: How can I display the nophoto placeholder in full size as an image in the banner? Currently only the image stored in $picto is used. Furthermore, the image is only displayed in 14x14 pixels…