A simple ST plugin to highlight text like `\todo`, `@todo`, `@author_name` - originally from - https://github.com/SublimeText/LaTeXTools/issues/1052#issuecomment-287898776

highlight-todo.py

import sublime
import sublime_plugin


class HighlightTodoListener(sublime_plugin.EventListener):
    def highlight_todo(self, view):
        # only highlight tex files
        if not view.score_selector(0, "text.tex"):
            return
        # adapt this regex as you wish
        commands = ["todo"]
        annotations = ["todo", "TODO", "note", "diego"]
        regions = view.find_all(
            r"\\(?:{com})\b|"
            r"@(?:{anon})\b"
            .format(com="|".join(commands), anon="|".join(annotations))
        )

        view.erase_regions("td_highlighter")
        view.add_regions("td_highlighter", regions, "keyword", "bookmark"
                         # , flags=sublime.DRAW_OUTLINED
                         )

    on_load = highlight_todo
    on_post_save = highlight_todo