When I mark a word, sentence or chapter it is very hard to see which area you have actually marked! You only see a very very light blue colour in the background of the marked area, aiming to be adjusted in some way (delete, change font, add underlining, cut/paste, etc). This type of marking for adjustments is done in almost all application alike in mails, Word, Messages or Notes when fine-tuning of the text is needed.
When I used Windows earlier, I think this marking was much more clearly visible to me so I could verify the exact text being selected! Is there any way to make the selected area much more visible?