press ctrl+f to open the search dialog box, directly click advanced-format-font, select red font color in the font dialog box, and confirm. Check "Highlight items found in this range" to find all. You can find all the red fonts in the text at the same time. You can change the font or font size. You copy the full text and paste it into txt, so you can judge the original red text according to the different fonts or the size of the words.