Hi,
I'd like to edit the file generating the categories menu of LUMA. does anyone know the location of the phtml file or the categories?
Hello @robertbits
module-theme\view\frontend\templates\html\topmenu.phtml
mostly content coming from block file.
If it will help you then mark as solution.
By Default Category top menu coming from Vendor Theme module.
Path is
vendor\magento\module-theme\view\frontend\templates\html\topmenu.phtml
But They will generate dynamically from Topmenu.php Block file,
Location of php file path wil be,
Magento\Theme\Block\Html\Topmenu.php