Inverting Sardi Ghost Archway Icons?

I was hoping to reach out to the “Author” but I don’t know how to do this… I just joined “opendesktop” to help resolve a very old question… How do in “INVERT” Sardi Ghost Archway Icon set? I think my problem is unresolved because I don’t use Arch or Gnome, My Distro of choice is MX Linux KDE. I have found “this & that” about Icon Inverting… but I’m LOST. Thank’s Phillip

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