message: Fix selection not inverting terminal background
  Fixes a regression introduced in
  where the terminal background
  would not get inverted when selected.
diff: @@ -289,6 +289,8 @@ impl RenderableCell {
  // Invert cell fg and bg colors
  mem::swap(&mut fg_rgb, &mut bg_rgb);
  }
  +
  + bg_alpha = 1.0;
  }
  // Override selection text with config colors
  