[Feature] Polygonal layer height inversion

[b2kdaman]

Is your feature request related to a problem? Please describe.
Sometimes I want to have an ability to compare visually differences closer to lower range of my dataset.

Describe the solution you'd like
Add Invert Height trigger control in polygonal layer config

Describe alternatives you've considered
None

Additional context
Here's a screenshot of our implementation:

Before:

After:

[b2kdaman]

@thunter009