Dark Session Manager is a free Chrome extension developed by skylake112. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools. This extension serves as a dark theme session manager, allowing users to group different tabs into "sessions" that can be closed and revisited later.

With Dark Session Manager, users can easily organize their browsing sessions by grouping related tabs together. This can be particularly useful for users who work on multiple projects or who have different sets of tabs for different purposes. By creating sessions, users can quickly switch between different sets of tabs without losing their progress or having to search for specific websites again.

The extension also offers a dark theme, which can be visually appealing for users who prefer a darker interface. This can help reduce eye strain, especially when browsing for extended periods of time in low light conditions.

Overall, Dark Session Manager is a convenient and customizable extension for Chrome users who want to better manage their browsing sessions and enjoy a dark theme interface.