Eyedropper/Screen Color Picker tool in any version does not work on Linux

Summary

The eyedropper/screen color picker tool in what seems like every Unreal version just straight up does not work on Linux, regardless of display server. When used, it selects the color as black. This is due to there not being an override for it within the engine code.

What Type of Bug are you experiencing?

UI / Tools

Steps to Reproduce

  1. Open Color Picker
  2. Click Eyedropper
  3. Color is set as black

Expected Result

The eyedropper should be selecting the color that my cursor is hovering over on my screen.

Observed Result

The color is set to black instead of being set to the color that my cursor is hovering over.

Affects Versions

5.8
5.7
5.6
5.5
5.4
5.3
5.2
5.1
5.0
4.27

Platform(s)

Linux