make it possible to disable highlighters

src/ui/bigtext/highlight_regex.py

@@ -12,7 +12,8 @@ import re
 class HighlightRegex(Highlight):
 
     def __init__(self, query: str, ignore_case: bool, is_regex: bool, hit_background_color: str = "None",
-                 line_background_color: str = "None"):
+                 line_background_color: str = "None", active: bool = True):
+        self.active = active
         self.query = query
         self.ignore_case = ignore_case
         self.is_regex = is_regex
@@ -29,6 +30,12 @@ class HighlightRegex(Highlight):
         else:
             return re.compile(re.escape(self.query), flags=flags)
 
+    def is_active(self) -> bool:
+        return self.active
+
+    def set_active(self, active: bool):
+        self.active = active
+
     def set_query(self, query: str) -> None:
         self.query = query
         self.regex = self._get_regex()