Font used by CSS for the HTML docs causes '[' and ']' to appear as a character missing in font symbol when togeather.

The open square bracket and close square bracket, when not separated, give the appearance of a square box outline - usually associated with having a missing character in the display font.

It is suggested that, in such instances, that mono-spaced teletype font be used to ensure clarity. Inserting a space is not suggested, as it would likely cause issues if copy and pasted into code.

An example can be seen Under 'Initializing a String' under 'Detailed Description' on the QString class reference doc page, 6th paragraph down (not including examples) - such as: operator[]()