Does the subject want to ask, "What if the directory on the mobile phone is blue?"

1. Right-click the file or folder, select Properties, and then change the folder icon in the Customize tab.

2. Second, use the Android system. You can try using other file manager applications to view this file or folder to see if a different color directory will be displayed.

3. Finally, you can try to copy this file or folder to another location. If the directory on the phone is blue, you can restore the color of the original directory.