This plugin is just a simple graphic mod from Witti's JS plugin called "punch light".
There are 4 models with various sizes: Box (red and black), classic, and modern.
Download: https://stash.reaper.fm/22616/recording_sign.zip
Big Thanks goes to Zorn the original creator of this plugin, and also Witti, the modder of this version of the plugin, and the creator of many other useful JS plugins.