Change the default click action ?

[tonarii]

Hello, how can i change the default click action to not open a popup but do something else when i click on a geojson area on my map?
I want to keep the tooltip on mouseover, but Ii want to display a lightbox image when the click action is triggered.
Can you tell me which file (and part) to edit ?
Thanks

[bozdoz]

The geojson features are iterated here: https://github.com/bozdoz/wp-plugin-leaflet-map/blob/master/shortcodes/class.geojson-shortcode.php#L154-L170

[tonarii]

Nice, thanks