Two improvements have recently been pushed to RSTA. First, inline CSS is highlighted in HTML, PHP, and JSP files. Previously, inline CSS was rendered as plain text; now it’s rendered just as if CSS highlighting were enabled.
The bad news is, this feature comes at a fair performance penalty (since the background is painted for each individual Token, not for the entire region at once). On good hardware (especially Windows machines) this shouldn’t really be a problem, but for this reason, this feature is disabled by default. To enable and query it, use these methods in the RSyntaxTextArea class:
public boolean getHighlightSecondaryLanguages(); public void setHighlightSecondaryLanguages(boolean highlight); public int getSecondaryLanguageCount(); public Color getSecondaryLanguageBackground(int index); public void setSecondaryLanguageBackground(int index, Color color);
There are currently three secondary language backgrounds, which I’m assuming is a sufficient and practical number until someone proves otherwise. The Theme DTD and API have been updated so that themes specify the background colors for secondary languages as well.