how can I import the rgb files and depth files to scene image

[guyuezuntinggithub]

Is your feature request related to a problem? Please describe.
I have several RGB images in PNG format and several depth images in PNG format. How can I add the RGB images and depth images to the scene's image and distinguish between them, since the scene's image doesn’t differentiate them?

Describe the solution you'd like
A sample code

Describe alternatives you've considered
none

Additional context
none