Much faster than using kint, with colour coding, and still works nicely within narrow DOM elements.
Make sure you install using composer, as it has symfony dependencies.
Enabling twig debugging in the first place:
Also make sure you've activated twig debugging properly (including enabling the settings.local.php file in settings.php, and adding the debug setting to development.services.yml)
Potential gotcha - settings.local.php needs to be in /sites/default (or whichever), not just /sites/
If Twig debugging isn't enabled, the symptom is you don't see any output for the dump() commands.
- Hover over the keys and you get a tooltip that says 'Public method','Protected property' etc.