The file browser currently doesn't respond to mouse hovering and is overall a bit user-unfriendly. Changing the color or spacing when a mouse hovers over an item makes it easier for users to know what item they are about to click, especially if their mouse is not near the item titles or in the margins. It also makes the interface seem more responsive and user-friendly. I have a style.css file where I've added hover response, click response (the indentation of an item you click will increase), and I've also increased the font size. I've attached a screenshot of the changes in action.