How to change the photo viewer background color of Win10 system

1. Press Win+R to open the run, enter “regedit”, click OK;
2. In the open registry editor window, expand HKEY_CURRENT_USERSoftwareMicrosoftWindows Photo ViewerViewer and create a new DWORD32 named BackgroundColor- Bit) value;
3, double-click the new key value, and modify its value to the background color you want. The color value is expressed in hexadecimal, and ff is added before the color value, for example, black is ff000000;

4. After the modification is completed, reopen the Windows Photo Viewer and you can see that the background color is changed to black. .