docs: improve dynamic theme documentation

Author: rickstaa

readme.md

@@ -159,70 +159,92 @@ You can look at a preview for [all available themes](./themes/README.md) or chec
 
 #### Responsive Card Theme
 
-We can not infer the browser theme on the server since GitHub will re-upload the cards and serve them from their CDN.
+[![Anurag's GitHub stats-Dark](https://github-readme-stats.vercel.app/api?username=anuraghazra&show_icons=true&theme=dark#gh-dark-mode-only)](https://github.com/anuraghazra/github-readme-stats#gh-dark-mode-only)
+[![Anurag's GitHub stats-Light](https://github-readme-stats.vercel.app/api?username=anuraghazra&show_icons=true&theme=default#gh-light-mode-only)](https://github.com/anuraghazra/github-readme-stats#gh-light-mode-only)
 
-The four methods you can use to create dynamics themes on the client side:
+Since GitHub will re-upload the cards and serve them from their [CDN](https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/about-anonymized-urls), we can not infer the browser/GitHub theme on the server side. There are, however, four methods you can use to create dynamics themes on the client side:
 
-- Simplest one: Use the `transparent` theme
+##### Use the transparent theme
 
-  With inbuilt theme, you can keep the look of the card dynamic to theme.
+We have included a `transparent` theme that has a transparent background. This theme is optimized to look good on GitHub's dark and light default themes. You can enable this theme using the `&theme=transparent` parameter like so:
 
-  Use `&theme=transparent` parameter like so:
+```md
+![Anurag's GitHub stats](https://github-readme-stats.vercel.app/api?username=anuraghazra&show_icons=true&theme=transparent)
+```
 
-  ```md
-  ![Anurag's GitHub stats](https://github-readme-stats.vercel.app/api?username=anuraghazra&show_icons=true&theme=transparent)
-  ```
+<details>
+<summary>:eye: Show example</summary>
 
-- Set the `bg_color` to a color with a transparent alpha channel `bg_color=00000000`
+![Anurag's GitHub stats](https://github-readme-stats.vercel.app/api?username=anuraghazra&show_icons=true&theme=transparent)
 
-  You can keep your background transparent by keeping the `bg_color` to a color with a transparent alpha channel `bg_color=00000000` in-order to keep it align with themes.
+</details>
 
-  Use `&bg_color=00000000` parameter like so:
+##### Add transparent alpha channel to a themes bg_color
 
-  ```md
-  ![Anurag's GitHub stats](https://github-readme-stats.vercel.app/api?username=anuraghazra&show_icons=true&bg_color=00000000)
-  ```
-  ![Anurag's GitHub stats](https://github-readme-stats.vercel.app/api?username=anuraghazra&show_icons=true&bg_color=00000000)
-  
-- Use GitHub's theme context tags to automatically switch the theme based
+You can use the `bg_color` parameter to make any of [the available themes](./themes/README.md) transparent. This is done by setting the `bg_color` to a colour with a transparent alpha channel (i.e. `bg_color=00000000`):
 
-  You can now specify the theme an image is displayed for in Markdown. Appending `#gh-dark-mode-only` or `#gh-light-mode-only` to the end of an image url will define whether it's only shown to viewers using a light or a dark GitHub theme.
+```md
+![Anurag's GitHub stats](https://github-readme-stats.vercel.app/api?username=anuraghazra&show_icons=true&bg_color=00000000)
+```
 
-  ```md
-  [![Anurag's GitHub stats-Dark](https://github-readme-stats.vercel.app/api?username=anuraghazra&show_icons=true&theme=dark#gh-dark-mode-only)](https://github.com/anuraghazra/github-readme-stats#gh-dark-mode-only)
-  [![Anurag's GitHub stats-Light](https://github-readme-stats.vercel.app/api?username=anuraghazra&show_icons=true&theme=default#gh-light-mode-only)](https://github.com/anuraghazra/github-readme-stats#gh-light-mode-only)
-  ```
-  [![Anurag's GitHub stats-Dark](https://github-readme-stats.vercel.app/api?username=anuraghazra&show_icons=true&theme=dark#gh-dark-mode-only)](https://github.com/anuraghazra/github-readme-stats#gh-dark-mode-only)
-  [![Anurag's GitHub stats-Light](https://github-readme-stats.vercel.app/api?username=anuraghazra&show_icons=true&theme=default#gh-light-mode-only)](https://github.com/anuraghazra/github-readme-stats#gh-light-mode-only)
-  
-- Use GitHub's new media feature in the HTML
+<details>
+<summary>:eye: Show example</summary>
+
+![Anurag's GitHub stats](https://github-readme-stats.vercel.app/api?username=anuraghazra&show_icons=true&bg_color=00000000)
+
+</details>
 
-  You can now specify whether to display images for light or dark themes in Markdown, using the HTML `<picture>` element in combination with the `prefers-color-scheme` media feature.
+##### Use GitHub's theme context tag
+
+You can use [GitHub's theme context](https://github.blog/changelog/2021-11-24-specify-theme-context-for-images-in-markdown/) tags to switch the theme based on the user GitHub theme automatically. This is done by appending `#gh-dark-mode-only` or `#gh-light-mode-only` to the end of an image URL. This tag will define whether the image specified in the markdown is only shown to viewers using a light or a dark GitHub theme:
+
+```md
+[![Anurag's GitHub stats-Dark](https://github-readme-stats.vercel.app/api?username=anuraghazra&show_icons=true&theme=dark#gh-dark-mode-only)](https://github.com/anuraghazra/github-readme-stats#gh-dark-mode-only)
+[![Anurag's GitHub stats-Light](https://github-readme-stats.vercel.app/api?username=anuraghazra&show_icons=true&theme=default#gh-light-mode-only)](https://github.com/anuraghazra/github-readme-stats#gh-light-mode-only)
+```
+
+<details>
+<summary>:eye: Show example</summary>
+
+[![Anurag's GitHub stats-Dark](https://github-readme-stats.vercel.app/api?username=anuraghazra&show_icons=true&theme=dark#gh-dark-mode-only)](https://github.com/anuraghazra/github-readme-stats#gh-dark-mode-only)
+[![Anurag's GitHub stats-Light](https://github-readme-stats.vercel.app/api?username=anuraghazra&show_icons=true&theme=default#gh-light-mode-only)](https://github.com/anuraghazra/github-readme-stats#gh-light-mode-only)
+
+</details>
+
+##### Use GitHub's new media feature
+
+You can use [GitHub's new media feature](https://github.blog/changelog/2022-05-19-specify-theme-context-for-images-in-markdown-beta/) in HTML to specify whether to display images for light or dark themes. This is done using the HTML `<picture>` element in combination with the `prefers-color-scheme` media feature.
 
-  ```html
-  <picture>
-    <source 
-      srcset="https://github-readme-stats.vercel.app/api?username=anuraghazra&show_icons=true&theme=dark"
-      media="(prefers-color-scheme: dark)"
-    />
-    <source
-      srcset="https://github-readme-stats.vercel.app/api?username=anuraghazra&show_icons=true"
-      media="(prefers-color-scheme: light), (prefers-color-scheme: no-preference)"
-    />
-    <img src="https://github-readme-stats.vercel.app/api?username=anuraghazra&show_icons=true" />
-  </picture>
-  ```  
-  <picture>
-    <source 
-      srcset="https://github-readme-stats.vercel.app/api?username=anuraghazra&show_icons=true&theme=dark"
-      media="(prefers-color-scheme: dark)"
-    />
-    <source
-      srcset="https://github-readme-stats.vercel.app/api?username=anuraghazra&show_icons=true"
-      media="(prefers-color-scheme: light), (prefers-color-scheme: no-preference)"
-    />
-    <img src="https://github-readme-stats.vercel.app/api?username=anuraghazra&show_icons=true" />
-  </picture>
+```html
+<picture>
+<source 
+  srcset="https://github-readme-stats.vercel.app/api?username=anuraghazra&show_icons=true&theme=dark"
+  media="(prefers-color-scheme: dark)"
+/>
+<source
+  srcset="https://github-readme-stats.vercel.app/api?username=anuraghazra&show_icons=true"
+  media="(prefers-color-scheme: light), (prefers-color-scheme: no-preference)"
+/>
+<img src="https://github-readme-stats.vercel.app/api?username=anuraghazra&show_icons=true" />
+</picture>
+```
+
+<details>
+<summary>:eye: Show example</summary>
+
+<picture>
+<source 
+  srcset="https://github-readme-stats.vercel.app/api?username=anuraghazra&show_icons=true&theme=dark"
+  media="(prefers-color-scheme: dark)"
+/>
+<source
+  srcset="https://github-readme-stats.vercel.app/api?username=anuraghazra&show_icons=true"
+  media="(prefers-color-scheme: light), (prefers-color-scheme: no-preference)"
+/>
+<img src="https://github-readme-stats.vercel.app/api?username=anuraghazra&show_icons=true" />
+</picture>
+
+</details>
 
 ### Customization