Adapt the route to avoid node with specific tags

Hi all,
I would like to improve the wheelchair profile with the insertion of other elements to be avoided. I’m trying to avoid for example the raised kerbs. It is possible to avoid the nodes with a specific tag?

I discover that this is not possible directly in Graphhoper.

I could also directly modify the code. Could you point me where to modify to improve the wheelchair profile, I was not able to find the correct file.

Update: Should be this the file to modify.

Lorenzo Stucchi