How do I find and replace a font colour in word?

I’m trying to replace one colour with another across a word document.

I’ve found a few posts from 2008 and this post from 2019 both with the same instructions across multiple different versions of word.

I’ve tested on 2010 and 2016 and neither work. The steps are as follows:

  1. Press Ctrl-H, and click the More button in the Find and Replace
    dialogue.
  2. Click the Find tab.
  3. Click the Format button and select Font.
  4. Select the colour to be changed—leaving all else blank—and click OK.
  5. Click the Replace tab, and repeat steps 2 and 3 to select the new colour.
  6. Click Replace All

This is my result:

enter image description here

Question: Is there a different/better/updated way to select every element of a word document to update the colour including headers and footers as they ignore ctrl+A?