| errors | Package errors implements functions to manipulate errors. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| github.com/disintegration/imaging | Package imaging provides basic image processing functions (resize, rotate, crop, brightness/contrast adjustments, etc.). |
| github.com/gobwas/glob | |
| github.com/gohugoio/hugo/helpers | Package helpers implements general utility functions that work with and on content. |
| github.com/gohugoio/hugo/media | Package media contains Media Type (MIME type) related types and functions. |
| github.com/gohugoio/hugo/source | Package source contains the types and functions related to source files. |
| github.com/mitchellh/mapstructure | |
| github.com/muesli/smartcrop | Package smartcrop implements a content aware image cropping library based on Jonas Wagner's smartcrop.js https://github.com/jwagner/smartcrop.js |
| github.com/spf13/afero | |
| github.com/spf13/cast | Package cast provides easy and safe casting in Go. |
| golang.org/x/image/webp | Package webp implements a decoder for WEBP images. |
| image | Package image implements a basic 2-D image library. |
| image/color | Package color implements a basic color library. |
| image/draw | Package draw provides image composition functions. |
| image/gif | Package gif implements a GIF image decoder and encoder. |
| image/jpeg | Package jpeg implements a JPEG image decoder and encoder. |
| image/png | Package png implements a PNG image decoder and encoder. |
| io | Package io provides basic interfaces to I/O primitives. |
| mime | Package mime implements parts of the MIME spec. |
| os | Package os provides a platform-independent interface to operating system functionality. |
| path | Package path implements utility routines for manipulating slash-separated paths. |
| path/filepath | Package filepath implements utility routines for manipulating filename paths in a way compatible with the target operating system-defined file paths. |
| strconv | Package strconv implements conversions to and from string representations of basic data types. |
| strings | Package strings implements simple functions to manipulate UTF-8 encoded strings. |
| sync | Package sync provides basic synchronization primitives such as mutual exclusion locks. |
| time | Package time provides functionality for measuring and displaying time. |