Hello,
In order to change the “Categories” menu, go to Appearance -> Menus -> in the “Select a menu to edit” field select “Categories (Mobile Side Menu)”
https://monosnap.com/file/fRk6EtdEtEImXfxl2FsWik6JlTavkE
To change some Categories menu styles, go to Pages -> select your front page -> At the start of the WPB page builder, you will see the “Mega Menu widget” element, edit it to open the settings
https://monosnap.com/file/YNSnfSStkSaCDcNIfK9jCj21IfPIsS
https://monosnap.com/file/E686DqcdA92CgkGm4aVUmDmWMfs0VA
https://monosnap.com/file/2ZfSgJ0BlWeWdSzAXUkJqzwpXdPh0t
To make the “Categories” label like in the demo version, go to Theme Settings -> Performance -> CSS -> find the “Styles always load” field and select there the “[Woodmart] Widget mega menu” option. This bug will be fixed in our next theme update
https://monosnap.com/file/WyJZaEX76vN4eufJKADH66pOWy13DD
https://monosnap.com/file/iV4A9o1FLwgX1Qg7Hdn2vTuZhy9cpK
Kind Regards