The X3DOM module allows X3D developers and users to easily upload and interact with 3D models by adding an X3D Interactive Viewer format for File fields.
Developer Docs is a module specially made for drupal developers (amateur). When a new module is installed, it is hard to find what changes it does unless we look into the code.
Himalaya is a simple, clean and responsive theme. The theme is not dependent on any core theme for Drupal 7 and for Drupal 8 it's use classy theme as a base theme. Its give you modern look and feel.
Cache Bypass Path is a lightweight module which simply provides a non cached path accessible only by a hash. This is intended for Drupal installations that have a Varnish Caching Layer.