Using WPComplete to Replace the LearnDash Progress Bar

WPComplete is a free plugin (with a paid version), that replaces the default progress bars in LMSs with it's own stylized progress bars. LearnDash contains a progress bar feature (and there is a Divi LearnDash Kit module for adding it), so WPComplete isn't essential. But it might be worth taking a look at the free version (at least) of WP Complete if you want a bit more control over the look of your progress bars.