Oh. Hello. You opened the inspector. You started reading the markup. You are scrolling through the source of a pool-fencing website at what we can only assume is an unreasonable hour, looking for the clever bit. We get it. We are the same. We have spent nights exactly like this one, three coffees deep, certain the good part was hiding one div lower. So here is the honest version. The part you are hunting for is not in your browser. It never touches this page. What gets sent down here is paint and plumbing. The thinking happens somewhere you cannot reach from this panel, and that is not an accident, it is the whole design. But you have come this far, and we are not monsters, so there is precisely one file worth opening before you go: >>> calc_solver_engine.js < Go on. It is right there. We will wait. . . . Still here? Good. After that file there is genuinely nothing else underneath but markup and good manners. Thank you for reading the source. Almost nobody does anymore. The ones who do tend to be builders, and we have a great deal of time for builders. If that is you, you already know where to find the email.