- Create an image with a transparent background in the image editor of your choice. Save it with transparency as a .PNG file.
- Email that file to the account you have on your Windows Phone.
- Open the email, tap the ellipses (…) and select “Use as wallpaper”
Dannahan offers the following suggestions for best results:
- Any transparencies in the image will be black until the lockscreen is touched or moved up.
- Will not work on password protected lockscreens.
- A dark theme is preferable.