title: What is format of customs.json configuratin file?
body: <p>For my PHP project which uses custom HTML tags for template part of the framework I would like to define Netbeans customs.json file, which can contain these new tags. Empty file in nbproject directory called customs.json looks like the one below. Is there any descrition of what I can define and how in this file? (e.g. definition that some tag can be only inside of another tag ... something like TR must be inside of TABLE tag ... but for my custom tags ...)</p>
  
  <pre><code>customs.json 
  {
      "attributes": {},
      "elements": {}
  }
  </code></pre>