This software is an EPUB reader that uses multiple tabs and allows users to read EPUB files like a web browser. It also features smooth scrolling, a sidebar for the table of contents, zoom options, and the ability to change the book cover. Users can also customize the display with their own CSS.

The software works seamlessly on both macOS and Windows, which means that no matter what device you're using, you can always access your favorite books.
One of the key features of this reader is its ability to support User CSS. With this, you can customize your EPUB book's style, allowing you to personalize your reading experience and display the book in your favorite way. This is a unique feature that sets this EPUB reader apart from others in the market.
Smooth scrolling with the mouse wheel is another feature that makes reading a breeze. You can navigate through your book with ease, without worrying about interruptions or glitches.
The sidebar allows you to show or hide the table of contents, which is helpful when you need to keep track of the different sections of a book. You can also zoom in and out to adjust the text size to your preference, making reading even more comfortable.
If you're looking to customize your book even further, you can change the book cover to make it more aesthetically pleasing. Finally, the User CSS feature lets you customize the display style of the book, giving you even more control over your reading experience.
Overall, this EPUB reader is an excellent software for avid readers who want a fast, efficient reader that also allows them to personalize their reading experience.
Version 1.0.10:
A multiple tabs EPUB reader
Smooth scrolling with the mouse wheel
Sidebar: show or hide the Table of Contents
Zoom In, Zoom Out: change the text size
Change the book cover
User CSS: customize the display style of the book