Instead, an “normal file” icon may display the offline files. This icon is indistinguishable from a non-offline file. You could encounter this issue because of a change in the shell that ...

You don’t need a third-party app, just the icon files to replace the defaults. If you’re theming your desktop, it won’t feel complete until the taskbar meshes with the rest of the look.

First of all, note that changing the icon size of files in a folder changes the size of all the icons in that folder. It doesn't change the icon sizes in other folders. 1. Use the File Explorer to ...