Comment by sradman

The use cases demonstrated are compelling but there seems to be an underlying assumption that current syntax highlighting techniques are broken. After reading the article I'd argue that there is a case to be made for enhanced but temporary syntax highlighting modes where most highlighting classes are muted except the focus of your attention, such as imported package variables.

Consistency is important, both for style and syntax highlighting. It is hard to anticipate what a developer is mentally focused on as they scan code.