Hierarchy Debugger:
controllers/app.php
controllers/index.php
controllers/singular.php
controllers/single.php
controllers/single-attachment.php
controllers/single-attachment-stock-photo-of-two-face-masks-isolated-on-a-blue-textured-background-and-copyspace.php
controllers/attachment.php
controllers/image_jpeg.php
controllers/jpeg.php
controllers/image.php