https://cudatext.github.io/

sudo apt-get install libqt5pas1 libqt5pas-dev
sudo dpkg -i cudatext_1.234.0.2-1_qt5_amd64.deb 

Settings user:

{
  "ui_theme": "cobalt",
  "ui_theme_syntax": "cobalt",
  "font_name__linux": "Ubuntu Sans Mono",
  "font_size__linux": 10,
  "ui_session_save_interval": 20,
  "mouse_middle_click": 2,
}

“ui_session_save_interval”: 20 - sets session auto save to 20 seconds
“mouse_middle_click”: 2 - allows middle mouse button to paste selection clipboard content on click