![Image](https://cdn.css-tricks.com/wp-content/uploads/2015/09/mini-map.jpg)
I have prepared a script for building such blocks and present it to you here; all you need is to select a text and voila, it stands out on Document Map now.
I have picked one font from Text to ASCII Art Generator (TAAG) and modified it a bit, but you may pick another (and build up it's definitions), if you want to
![Smile :)](./images/smilies/icon_smile.gif)
You can switch "building block" (i.e. ASCII character) for your header, if you prefer it to be darker or lighter than default one (#); I have given some suggestions in the script.
Length of your header depends, of course, on your Document Map's font size; with font at 5 points you can see up to 7 letters, with 4 points up to 10 and with 3 points (that's my assumption, because it serves me well) up to 14.
Enjoy!