Support for Character Reference Variables

[thatsIch]

Rainmeter Version 4.1 September 11, 2017 - Revision 2873

released a new feature to allow different representation of unicode characters like

• [\x2622] for hexdecimal or
• [\9762] for decimal

which should produce ☢ used in Rainmeter like

Text=Caution, radioactivity [\x2622] ahead!

https://docs.rainmeter.net/manual-beta/variables/character-variables/

These values can be nested like

Text=[\[&MeasureName]]

and I need to check if the current expressions support that or add additional support to highlight them.