System-wide application and folder icon customization via GUI (without Terminal)

[Dionisiy-UA]

Hello!
Could you please consider adding an easy way to customize application and default folder icons globally (system-wide) directly through the graphical user interface?
Currently, if a user wants to change specific application icons (for example, replacing LibreOffice icons with custom ones), they have to use the Terminal, locate system directories, and manually replace multiple icon sizes. This process is very complicated and frustrating for regular users.
While Linux Mint allows changing icons locally for individual shortcuts or folders, there is no easy GUI way to do this system-wide.
Proposed solution:
Introduce a dedicated Icon Customization page (potentially inside System Settings) where users can manage their icons using a clean graphical interface:

1. The page lists categories for default folders (Documents, Downloads, etc.) and installed Applications.
2. Users can click on any item to upload a custom icon.
3. Next to the selection, use checkboxes (or toggle switches) to define whether the change applies Locally (current user) or System-wide (all users/global).
   This would give users true freedom of customization in a centralized, user-friendly way without forcing them into the Terminal.
   Thank you for your amazing work on Linux Mint!