crimson090

Displays an indicator above the admin bar indicating the current environment. Useful for quickly determining which 
environment you are currently viewing.
This only displays in the WordPress admin, not on the website itself.

WordPress Environment Indicator

Displays an indicator above the admin bar indicating the current environment.

Marcin Pietrzak

Reading Position Indicator adds a stylish horizontal progress bar alongside your content, showing readers how far they’ve scrolled. It enhances user engagement by providing a clear visual cue of reading progress, ideal for blogs, articles, and long-form content.
Features 
* Horizontal progress bar displayed on posts and pages. 
* Customizable colors, opacity, rounded edges, and gradients. 
* Lightweight and performance optimized. 
* Easy setup with no coding required. 
* Translation ready. 
* Compatible with most WordPress themes.
Thank you <a href="http://pankajparashar.com/" rel="nofollow ugc">Pankaj Parashar</a> for your article on CSS-TRICKS about <a href="https://css-tricks.com/reading-position-indicator/" rel="nofollow ugc">Reading Position Indicator</a>

Reading Position Indicator

Add reading position indicator on page top.

WordPress Environment Indicator vs Reading Position Indicator