Highlight all occurrences of selected word (for dark themes)

This one varies from the original "Highlight all occurrences of selected word" by replacing the yellow green highlight with dark red.

This extension will highlight all occurrences of a selected word in the current document and display a glyph on the left margin.
This allows for fast visualization of a specific word used throughout the document, including ones in comments.

Steps:

1) Install the extension and verified that it is enabled in the Tools->Extension Manager.

2) In the editor window, select a word with a mouse or keyboard.  

All occurrences of the word selected should be highlighted in the current document.