How do I change the Writer standard toolbar 'insert bookmark' icon to match the icon in the Navigator?

Version 5.1.6.2, Maui Linux - Ubuntu based. Galaxy theme.

I’m using LO 6.0.2.1:

  1. Go to menu Tools > Customize...
  2. Select second tab, Toolbars and check if Standard toolbar is selected (at the four fields on top of dialog, the bottom right field)
  3. On the right list, find Bookmark command and select it, then click on Modify > Change Icon
  4. Find the icon used in Navigator, select it and hit OK. That’s it!

If you need to reset the icon, just click Modify > Reset Icon on Customize... dialog.