See the example below, taken from Open Office on Mac (the same happens with most editors I know, and even graphics software such as Photoshop or Illustrator)
As you can see, the editor clearly shows the formatting when the formatting is the same for all characters in a selection. However, when there are mixed formats, some editors shows everything as
not formatted(as in Open Office's case), or in some cases, and quite randomly, as
everything is formatted.
Now, my question is: is there a way to show that text format is something like all / none / mixed ? If so, is there an example of this?
(Just in case, I'd need this for a web and mobile app, not software GUI, but any answer would help)