In PHP (and many other languages), single-quoted strings behave differently from double-quoted strings.
I would like to have different background colours for those two kind of strings.
Looking in developper mode, one can see that they have CSS classes “string quoted single php” and “string quoted double php”.
But where is the CSS defined? Where can I find where the CSS is defined for the PHP language (or for the meta-definition that is used by the PHP syntax highlighter)? And if just editing the file won’t do it, what is the proper procedure to change it?
(I run Atom on Windows 7). Thx.