Transform->Skew->Horizontal icon should be flipped

Steps to reproduce:

Here is 20 deg horizontal skew result

image

But icon suggest transformation in another direction (like -20 deg)

image

Inkscape Version and Operating System:

  • Inkscape Version: 1.0alpha2 (96b241fb24, 2019-06-09)
  • Operating System: Ubuntu
  • Operating System version: 18.04