Function linicon_ffi::linicon_lookup_icon

#[no_mangle]
pub unsafe extern "C" fn linicon_lookup_icon<'a>(
    theme_name: *mut c_char, 
    name: *mut c_char, 
    size: u16, 
    scale: u16
) -> *mut linicon_IconIter<'a>

Lookup and icons given a name, size, and scale and the name theme you want to look the icon up from.