(OSX) Color picker doesn't "see" any colors outside of its own window

[Nowaker]

Describe the bug
You can only pick a color from Colorpicker.app.
It doesn't "see" any colors in other application, like Chrome or OSX UI.

To Reproduce
Ditto.

Expected behavior
Ditto.

Screenshots

GitHub's background-color is not white.

OS (please complete the following information):

• OS: OSX
• Version 15.3.1 (24D70)

Colorpicker (please complete the following information):

• Version 2.2.2

Additional context
N/A