Taking the operation of Lenovo Xiao Xin PAD PRO 1 1.5 inch computer, WIN 10 professional edition and photo studio software as examples, you can open pictures through this software. Then choose the desired foreground color and background color respectively, and then choose the background color area of the photo. Finally, select the gradient tool to stretch and make the required gradient background color. The specific setting method is as follows:

1, open the PS software on the computer to enter.

2. After opening the software, click the file and select Open.

3. Select the desired picture in the dialog box that appears, and then click Open.

4. After opening the picture, click the magic wand tool to select the background color of the photo.

5. Then select the eyedropper tool, click the foreground color of the toolbar, and select the desired gray color.

6. Select the eyedropper tool, click the background color, and then select the corresponding color as needed.

7. Click the gradient tool after color setting, and drop it down to the selected background area to make the required gradient background.

8. After the operation is completed, click the file and select the Save button.

9. Open the picture, and you can see the photo with gray gradient background color.