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Features

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Feature Summary
Deceptive Simplicity After Dark is a Hugo theme, making it a suitable starting point for novice and advanced developers alike. It advances using the "Code for today, not for tomorrow" philosophy of XP and includes only what's necessary to create and run your site – nothing more.
Semantic Versioning Predictable changes enable theme users stay up-to-date with what's happening. After Dark uses Semantic Versioning and maintains a CHANGELOG for easy consumption.
Inclusive Design Optimized for mobile, tablet, desktop and terminal browsers.
Performance Optimized Page content, favicon and styles load in a single request on all pages. External resources, if present, are loaded asynchronously and only when necessary. This keeps pages zippy and affords ~1 second page loads over 2G when hosted using a CDN.
Vertical Scaling After Dark is capable of generating ~1000 pages per second thanks to Hugo and is likely to become faster over time.
Open Graph After Dark provides automatic and configurable Open Graph support, making social shares pop like 37 pieces of flair.
Search Optimization Using Schema Structured Data and meta tags, After Dark gives crawlers rich data about the site structure and content. No configuration required.
Personalization Adjust CSS using purpose-built customization file. Choose one of several theme variants. Swap in your own favicon. Leverage block templates to quickly extend new custom layouts. And use hack.css flexbox grids and CSS components to add style your site.
Section Menu Add and customize your site's global navigation. After Dark uses Hugo's Section Menu for "the Lazy Blogger", making navigation easy to create and predictable to use. Don't want navigation? Simply disable it from your site configuration.
Intelligent Lazy Loading Lazy load your images, iFrames and script embeds. After Dark uses the lazysizes library, a zero-configuration JavaScript library with support for LQIP and responsive images.
Content Reuse Sometimes plan markdown isn't enough to build engaging page content. For this reason After Dark provides a number of built-in shortcodes for for adding things like blockquotes, lazy-loaded figure elements and hackcss components to your posts and pages, many of which can be mixed and matched to create truly unique experiences.
Related Content Promote more of your content to your site visitors. By offering your readers more content that's relevant to them you can increase your site's page views, the time spent on your site and reader loyalty.
Table Of Contents Help users locate and share information on your site. By providing a TOC, users will spend less time scrolling to locate information in larger documents and are more likely to deep link to specific information on a page.
Analytics Understand and action on user behavior by enabling Google Analytics. After Dark uses the async tracking snippet to boost performance and allow script preloading.
User Generated Content Improve search rankings and provide interactivity to users with UGC. Enable Disqus commenting to get started.
Reading Time Set user expectations up-front. After Dark provides estimated reading time for each post near the top of the page. This feature is automatic and assumes a reading speed of 200-250 words per minute.
Modification Dating Surface recently updated content to users and crawlers, allowing them to understand when a post or page was was last modified. Recently updated posts will be flagged as modified and visually lifted upwards in chronological listings.
Syntax Highlighting Share code snippets with style. After Dark provides opt-in syntax highlighting with support for line numbers and highlighted lines.
Taxonomy Pages Help users discover taxonomic content. After Dark automatically generates taxonomy and taxonomy terms pages and links to them in post bylines.
Post Bylines Rich post bylines include optional author name, word count, links to taxonomy pages and metadata for search engines.
Pagination Pagination can be hard. After Dark makes it easy with simple list pagination with page indication.
Animated Error Page Decrease bounce rate when URL errors occur. After Dark provides an engaging 404 page with animated background.
Accessibility After Dark uses semantic HTML5 markup to provide a better experience for aural readers and facilitates navigation via keyboard only.

Demo & Tutorial

Head to Hack Cabin for a production example running on AWS and to learn more about the site architecture. I’ve also written a step-by-step guide to hosting After Dark based on the way I do it.

Getting Started

Install Hugo and, optionally, elinks on your machine. Instructions for installing both using Homebrew on macOS:

brew install hugo elinks

Then run the install script located in bin/install.sh, or just paste this into a terminal and press Enter:

curl -s https://raw.githubusercontent.com/comfusion/after-dark/master/bin/install.sh | sh

Installation should complete in a matter of seconds.

Tip: Windows users needing to run Linux commands use cmder or get Docker.

Customizing

Section Menu

After Dark uses Hugo’s Section Menu for Lazy Bloggers to produce global site navigation if enabled.

To customize the menu, update the settings in config.toml like:

[[menu.main]]
  name = "Home"
  weight = 1
  identifier = "home"
  url = "/"
[[menu.main]]
  name = "Posts"
  weight = 2
  identifier = "post"
  url = "/post/"

Or update the menu using front matter from your pages:

menu = "main"
weight = 3

Intelligent Lazy Loading

Lazy loading prioritizes when and how images and more are downloaded, improving perceived performance and reducing page load times. When activated, lazy loading will start working automatically. No JavaScript configuration is necessary.

What makes it Intelligent? If no lazy loaded content is detected on a page when the site is generated, the feature will not be activated and no additional downloads will occur.

To activate lazy loading with lazysizes, add lazyload to the class attribute of your images/iframes in conjunction with a data-src and/or data-srcset attribute:

<!-- non-responsive -->
<img data-src="image.jpg" class="lazyload">
<!-- responsive with automatic sizes calculation -->
<img
  data-sizes="auto"
  data-src="image2.jpg"
  data-srcset="image1.jpg 300w, image2.jpg 600w, image3.jpg 900w"
  class="lazyload">
<!-- iframe example -->
<iframe frameborder="0"
  class="lazyload"
  allowfullscreen
  data-src="//www.youtube.com/embed/ZfV-aYdU4uE">
</iframe>

To help get you started, After Dark includes a Shortcode taking advantage of this feature, enabling you to easily create lazy-loaded figure elements within your markdown content.

Additional information and examples, including how to set-up and use LQIP (Low-Quality Image Placeholders), are available on the lazysizes repository on GitHub.

Promote more of your content to your site visitors. By offering your readers more content that’s relevant to them you can increase your site’s page views, the time spent on your site and reader loyalty.

Related content surfaces content across sections by matching taxonomy tags. If After Dark finds related content, it will automatically output a list of links to that content in reverse chronological order below the byline of your post content.

By default After Dark will display up to 7 items by title along with their reading times. You can limit the number of items displayed by setting the following optional parameter in the [params] section of your config.toml file:

related_content_limit = 5

Table Of Contents

Help users locate and share information on your site. By providing a TOC, users will spend less time scrolling to locate information in larger documents and are more likely to deep to specific information on a page.

To automatically generate a TOC for a post based on the page outline, add the following to your post front matter:

toc = true

To hide the TOC set toc = false, or simply remove the setting from the post front matter.

After Dark uses the HTML5 details and summary elements to provide a TOC which does not require use of CSS or JavaScript to function.

When a page is first loaded, the TOC will be collapsed so it does not clutter up the page. Once expanded, selecting an item in the TOC will smooth scroll to that section within the document, highlight the section header and updating the browser’s location bar for deep linking and back-button support.

Open Graph

After Dark leverages Open Graph tags using the undocumented internal template to achieve rich sharing cards for Facebook and other social networks, as shown here:

Open Graph sharing card screenshot

To create a social sharing card like the one shown above, specify author in config.toml and, optionally, override it from your front matter when specifying applicable details for the post or page:

title = "Become a Digital Nomad in Bali: The Lost Guide"
description = "Everything you need to know to become a Digital Nomad in Bali."
author = "After Dark"
date = "2017-02-02T11:57:24+08:00"
publishdate = "2017-01-28T02:31:22+08:00"
images = [
  "https://source.unsplash.com/-09QE4q0ezw/2000x1322"
]

To configure site-wide Open Graph images to use as fallbacks for posts not specifying their own open graph images, add an array of URLs to the [params] section in config.toml:

images = [
  "https://source.unsplash.com/-09QE4q0ezw/2000x1322" # Default Open Graph image for site
]

See Unsplash Source for image configuration options.

Note: While it would be possible, After Dark does not currently support relative links to images. If you would like to see this feature, please open a new issue.

Search Optimization

After Dark is built with SEO in mind. Schema Structured Data and other meta are applied to give robots what they want, automatically, without any configuration necessary.

The default set-up helps ensure your After Dark site will rank well in SERPs and prevent search crawlers from indexing undesirable content. Fine-tune your search settings using the following available options.

Webmaster Verification

Verify your site with several webmaster tools including Google, Bing, Alexa and Yandex. To allow verification of your site with any or all of these providers simply add the following to your config.toml and fill in their respective values:

[params.seo.webmaster_verifications]
  google = "" # Optional, Google verification code
  bing = "" # Optional, Bing verification code
  alexa = "" # Optional, Alexa verification code
  yandex = "" # Optional, Yandex verification code

Note: Claiming your site with Alexa was retired in May 2016. However, Alexa verification has been added as a convenience for existing sites migrating to After Dark.

Meta Descriptions

Well-crafted page titles help catch the human eye on search results pages and meta descriptions provide a summary of the content and why its relevant for the reader, driving click-throughs.

To add a custom meta description to your pages and posts add description to the front matter:

description = "Everything you need to know to become a Digital Nomad in Bali."

In addition to appearing in search engines, meta descriptions also appear on individual pages and in content summaries in After Dark, adding transparency to how your page will appear in search.

If no custom description is provided, After Dark will fallback to the description provided in config.toml. Learn more on how to craft your meta descriptions.

Modification Dating

Help user agents know when posts were last modified. To do so add publishdate to your page front matter and update date anytime you make an update to a post.

Updates will be made visible to readers by surfacing content higher in your page and post listings and by using visible callouts on content summaries. For robots, making this change will automatically update Schema Structured Data and Web feeds, as well as the lastmod setting in your sitemap.xml file.

You can be specific and use a datetime (with timezone offset) like:

date = "2017-02-02T01:20:56-06:00"
publishdate = "2016-11-21T10:32:33+08:00"

Or less specific and use just the dates:

date = "2017-02-02"
publishdate = "2016-11-21"

Review the W3C website for more information on dates and times for the Web infrastructure.

Index Blocking

Just because a page appears in your sitemap.xml does not mean you want it to appear in a SERP. Examples of pages which will appear in your sitemap.xml that you typically do not want indexed by crawlers include error pages, search pages, legal pages, and pages that simply list summaries of other pages.

Though it’s possible to block search indexing from a robots.txt file, After Dark makes it possible to block page indexing using Hugo configuration as well. By default the following page types will be blocked:

To customize default blocking configure the noindex_kinds setting in the [params] section of your config.toml.

For example, if you want to enable crawling for sections appearing in Section Menu, add the following to your configuration file:

[params]
  noindex_kinds = [
    "taxonomy",
    "taxonomyTerm"
  ]

To block individual pages from being indexed add noindex to your page’s front matter and set the value to true, like:

noindex = true

And, finally, if you’re using Hugo v0.18 or newer, you can also add an _index.md file with the noindex front matter to control indexing for specific section list layouts:

├── content
│   ├── modules
│   │   ├── starry-night.md
│   │   └── flying-toilets.md
│   └── news
│       ├── _index.md
│       └── return-flying-toasters.md

To learn more about how crawlers use this feature read block search indexing with meta tags.

For related content split across multiple pages in a sequence After Dark supports use of prev and next settings in your front matter. Use them to provide semantic relationships between pages in a segmented article or series or LiveBlogPosting.

prev = "/series/learn-to-code/part-one/"
next = "/series/learn-to-code/part-three/"

Link Types are commonly shown at the top of the page in terminal browsers as auxiliary means of navigation and may help crawlers better understand relationships within your content.

Learn more about link types and how to customize Hugo taxonomies.

Meta Keywords

Meta keywords offer semantic detail to crawlers regarding the subject matter of your content. Keywords meta are generated automatically for pages given the tags used for that page, and for other pages using the site categories taxonomy. Keywords and key phrases may be customized by setting a keywords array in your front matter:

keywords = [
  "web development",
  "digital marketing",
  "social media",
  "link building"
]

While not considered relevant to some crawlers, keywords can be a useful way to document target search terms for use in PPC</abbr> online advertising and provide semantic value to your pages.

Markdown Output

Gain more control over markdown conversion to HTML. By modifying the markdown processor settings you can take advantage of Blackfriday features not enabled by default.

To customize conversion output add a [blackfriday] section to your site’s config.toml file like so:

[blackfriday]
  hrefTargetBlank = true
  fractions = false

Overrides to theme markdown processing defaults are available from page front matter as well, giving you control on a page-by-page basis.

See the Hugo docs for additional configuration options.

Shortcodes

Keep your content DRY and improve thematic consistency across your site. To help achieve this, Hugo provides Shortcodes.

Shortcodes are very powerful and can be used to achieve functionality not otherwise available in the markdown processor. Hugo provides a number of built-in shortcodes you can use on your site and After Dark provides some as well.

Here’s the blockquote shortcode provided by After Dark:

<blockquote class="" cite="">
  
  
    <cite><a target="_blank" href=""></a></cite>
  
    <cite></cite>
  
</blockquote>

Use it in your markdown files like:


  <p>When you create your own Branded Short Domain, you can expect to see up to a 34% increase in CTR when compared to standard bit.ly links.</p>

Additional theme-provided shortcodes at your disposal:

Also included are a number of shortcodes for hackcss components which function across After Dark theme variants:

To create your own custom shortcodes add a layouts/shortcodes directory to your site, place your shortcodes within and start using them in your markdown content.

Reference the Hugo docs for shortcode usage instructions.

Syntax Highlighting

Provide a richer experience when sharing code snippets on your site. After Dark provides opt-in support for code highlighting using the lovely One Dark and One Light syntax themes for Pygments.

Syntax Highlighting screenshot

To set-up syntax highlighting for your After Dark site:

Then choose either ./dist/light.css or dark.css depending on your Theme Variant and copy the contents of the file into your Custom Styles file.

Once configured, syntax highlighting with Pygments can be achieved using the Hugo built-in highlight shortcode. Reference Hugo’s Syntax Highlighting docs for usage instructions.

Not completely satisfied? Atom One Pygments is built as a theme roller, making it possible to modify the look-and-feel of the resulting syntax highlighting. Make it your own. See the README for more details.

Personalization

After Dark uses hack.css to automatically style your markup, giving you instant access to flexbox grids, light and dark theme variants, and other pre-built components. Use them while creating new sections leveraging block templates. Additional personalization options listed below.

Custom Styles

To add your own theme styles or override existing CSS without having to change theme files do the following:

  1. Create a critical-custom.css in your site’s layouts/partials directory.
  2. Add your custom styles inside the file.

Example customization file:

/* override theme defaults */
.muted {
  color: rgba(255, 255, 255, 0.5);
}
/* custom styles */
figure {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}
figure img {
  max-width: 80%;
}
figure a {
  border-bottom: none !important;
}
figure a:hover {
  background-color: inherit !important;
}

Your customizations will be inlined into the head section of each page and, overriding existing styles if specified.

Theme Variants

hack.css provides a few variants you may wish to use instead of the After Dark defaults. To download them do an npm i from /themes/after-dark/ (assumes NPM installed).

Once downloaded, open node_modules/hack/dist directory and replace the contents of critical-vendor.css with the CSS you wish to use, updating the theme_variant setting in the site configuration like:

theme_variant = "standard dark-grey"

Why not use external CSS files? After Dark is optimized for speed and, as a result, limits the number of HTTP requests whenever possible. Concessions for external CSS for HTTP/2 Push State support will be made upon request.

Once the vendor file is updated, open your favorite dev tools and test the changes by previewing your site on mobile, tablet and desktop at different display resolutions and orientations, making any tweaks necessary to critical-theme.css.

And, finally, adjust your Customized Styles, 404 page and /meta/theme-color as necessary.

Favicon

After Dark comes preinstalled with a tiny SVG favicon embedded into every page. To customize it create a file named favicon.html under /layouts/partials within your site and place an icon link within it.

Why SVG? Simple. They have a smaller file size and are more flexible. SVG favicons can be styled with CSS or even animated with JavaScript. Firefox added support for them in Release 41, which you can preview the current icon until other browsers fall in line.

Contributing

If you’ve spotted a bug or would like to make an enhancement suggestion, please open an issue on GitHub. Build something awesome with After Dark? Have it added to the After Dark wiki for others to see. For general questions or support, please feel free to reach out directly.

License

ISC