I found that I can type control + shift + hyphen
to insert a non-breaking hyphen. This is useful to me in certain situations, but it then highlights the hyphen with gray background, which I don’t want to see in my document. It may not print (I don’t know) but my docs are for viewing on-screen, and I want the gray highlight gone. So I went to Tools > Options > LibreOffice > Application Colors and found that the “Field Shadings” color was controlling the color around the hyphen. I unchecked the box, but the color is still there. Should unchecking the box make it go away? I can make it go away by setting the color to white, same as my document background, but that that seems non-ideal. What if the text is in a paragraph with a different background color?
Should unchecking that box cause the highlight color to go away in the document?