Optional improvements: show folder sizes, use MB/GB for large files (by default, all sizes are shown in KBs), use IEC terms (such as KiB instead of KB)
Allows hiding system icons: volume, network, battery, microphone, location/GPS, Studio Effects, language bar, bell (always or when there are no new notifications), and the "Show desktop" button (hide or set width)
Adds WS_EX_CLIENTEDGE (3D border) to some apps to look better in Classic theme. Includes SysListView32 control in
File Explorer, Internet Explorer, legacy (XP-like) file picker, Regedit, Classic Notepad and Wolfram Mathematica.