[Markdown][Web/Manifest] Convert Web/Manifest to Markdown - DO NOT SQUASH MERGE

files/en-us/web/manifest/background_color/index.md

@@ -0,0 +1,43 @@
+---
+title: background_color
+slug: Web/Manifest/background_color
+tags:
+  - Manifest
+  - Web
+  - background_color
+browser-compat: html.manifest.background_color
+---
+{{QuickLinksWithSubpages("/en-US/docs/Web/Manifest")}}
+
+<table class="properties">
+  <tbody>
+    <tr>
+      <th scope="row">Type</th>
+      <td><code>String</code></td>
+    </tr>
+    <tr>
+      <th scope="row">Mandatory</th>
+      <td>No</td>
+    </tr>
+  </tbody>
+</table>
+
+The `background_color` member defines a placeholder background color for the application page to display before its stylesheet is loaded. This value is used by the user agent to draw the background color of a shortcut when the manifest is available before the stylesheet has loaded.
+
+Therefore `background_color` should match the {{cssxref("background-color")}} CSS property in the site’s stylesheet for a smooth transition between launching the web application and loading the site's content.
+
+> **Note:** The `background_color` member is only meant to improve the user experience while the main stylesheet is loading from the network or the storage media; it is not used by the user agent as the {{cssxref("background-color")}} CSS property when the progressive web app stylesheet is available.
+
+## Examples
+
+```json
+"background_color": "red"
+```
+
+## Specifications
+
+{{Specifications}}
+
+## Browser compatibility
+
+{{Compat}}

files/en-us/web/manifest/categories/index.md

@@ -0,0 +1,43 @@
+---
+title: categories
+slug: Web/Manifest/categories
+tags:
+  - Manifest
+  - Web
+  - categories
+browser-compat: html.manifest.categories
+---
+{{QuickLinksWithSubpages("/en-US/docs/Web/Manifest")}}
+
+<table class="properties">
+  <tbody>
+    <tr>
+      <th scope="row">Type</th>
+      <td><code>Array</code> of <code>String</code>s</td>
+    </tr>
+    <tr>
+      <th scope="row">Mandatory</th>
+      <td>No</td>
+    </tr>
+  </tbody>
+</table>
+
+The _`categories`_ member is an array of strings defining the names of categories that the application supposedly belongs to. There is no standard list of possible values, but the W3C maintains [a list of known categories](https://github.com/w3c/manifest/wiki/Categories).
+
+> **Note:** `categories` are used only as hints for catalogs or stores listing web applications. Like search engines and meta keywords, catalogs and stores are free to ignore them.
+
+> **Note:** `categories` values are lower-cased by the stores and catalogs before processing, so "News" and "news" are treated as the same value. Developers are encouraged to use lower case in the first place.
+
+## Example
+
+```json
+"categories": ["books", "education", "medical"]
+```
+
+## Specifications
+
+{{Specifications}}
+
+## Browser compatibility
+
+{{Compat}}

files/en-us/web/manifest/description/index.md

@@ -0,0 +1,49 @@
+---
+title: description
+slug: Web/Manifest/description
+tags:
+  - Manifest
+  - Web
+  - description
+browser-compat: html.manifest.description
+---
+{{QuickLinksWithSubpages("/en-US/docs/Web/Manifest")}}
+
+<table class="properties">
+  <tbody>
+    <tr>
+      <th scope="row">Type</th>
+      <td><code>String</code></td>
+    </tr>
+    <tr>
+      <th scope="row">Mandatory</th>
+      <td>No</td>
+    </tr>
+  </tbody>
+</table>
+
+The _`description`_ member is a string in which developers can explain what the application does. `description` is directionality-capable, which means it can be displayed left to right or right to left based on the values of the [`dir`](/en-US/docs/Web/Manifest/dir) and [`lang`](/en-US/docs/Web/Manifest/lang) manifest members.
+
+## Examples
+
+Simple `description` in left-to-right language:
+
+```json
+"description": "Awesome application that will help you achieve your dreams."
+```
+
+`description` in Arabic, which will be displayed right-to-left:
+
+```json
+"dir": "rtl",
+"lang": "ar",
+"description": ".تطبيق رائع سيساعدك على تحقيق أحلامك"
+```
+
+## Specifications
+
+{{Specifications}}
+
+## Browser compatibility
+
+{{Compat}}

files/en-us/web/manifest/dir/index.md

@@ -0,0 +1,55 @@
+---
+title: dir
+slug: Web/Manifest/dir
+tags:
+  - Manifest
+  - Web
+  - dir
+browser-compat: html.manifest.dir
+---
+{{QuickLinksWithSubpages("/en-US/docs/Web/Manifest")}}
+
+<table class="properties">
+  <tbody>
+    <tr>
+      <th scope="row">Type</th>
+      <td><code>String</code></td>
+    </tr>
+    <tr>
+      <th scope="row">Mandatory</th>
+      <td>No</td>
+    </tr>
+  </tbody>
+</table>
+
+The base direction in which to display direction-capable members of the manifest. Together with the [`lang`](/en-US/docs/Web/Manifest/lang) member, it helps to correctly display right-to-left languages.
+
+The `dir` member can be set to one of the following values:
+
+- `auto` — text direction is determined by the user agent
+- `ltr` — left to right
+- `rtl` — right to left
+
+The _directionality-capable members_ are:
+
+- [`name`](/en-US/docs/Web/Manifest/name)
+- [`short_name`](/en-US/docs/Web/Manifest/short_name)
+- [`description`](/en-US/docs/Web/Manifest/description)
+
+> **Note:** If the value is omitted or set to `auto`, the browser will use the [Unicode bidirectional algorithm](/en-US/docs/Web/Guide/Unicode_Bidrectional_Text_Algorithm) to make a best guess about the text's direction.
+
+## Example
+
+```json
+"dir": "rtl",
+"lang": "ar",
+"short_name": "!أنا من التطبيق"
+```
+
+## Specifications
+
+{{Specifications}}
+
+## Browser compatibility
+
+{{Compat}}