Select the icon you want to replace the existing ones with. Using the dialogue box, open the icon pack you want to. You can press the Browse button if you want to explore further. In the upcoming window, you can see a list of available icons. To get started, just click on the new button on the taskbar (or WIN + C) to launch Windows Copilot.
Although File Explorer will remember your last setting when you open this folder again, this is a folder-specific setting, so you'll have to adjust each folder you'd want different icon and text sizes for. To install more file icon themes, select the Install Additional File Icon Themes item in the file icon theme picker and youll see a query for file icon themes. To change an individual icon, click on the icon and select the option named Change Icon. To use Copilot in this flight you must have Windows Build 23493 or higher in the Dev Channel, and Microsoft Edge version 1.150 or higher.