In dark mode I feel that the progress bar is lost as it is very similar to the main bar, I think it would be better with more contrast.
Another detail that I have noticed is that the icon that indicates the progress or when the book is finished is lost in light colors perhaps it would be better to remove the transparency.
And finally a suggestion is for the screen where the information dle book and shows all the chapters would be nice something that would indicate that chaptiulos already listened and the progress of the current chapter for example in the attached screenshot would go in 010 but there is something to indicate it.
In dark mode I feel that the progress bar is lost as it is very similar to the main bar, I think it would be better with more contrast.
Another detail that I have noticed is that the icon that indicates the progress or when the book is finished is lost in light colors perhaps it would be better to remove the transparency.
And finally a suggestion is for the screen where the information dle book and shows all the chapters would be nice something that would indicate that chaptiulos already listened and the progress of the current chapter for example in the attached screenshot would go in 010 but there is something to indicate it.