mapnik style - How to enlarge street names?

Hi all,
I’m modifying default mapnik style to my own needs.
I’ve successfully removed some layers & elements from my map, enlarge some fonts here & there,
but I cannot find a TextSymbolizer definition responsible for street names font.
Could anyone point me where it is?

I’m assuming you are talking about osm-carto, but since you mention TextSymbolizers I’m not sure. Please note that the XML version of the default style is no longer maintained.

In openstreetmap-carto you find the road text layer starting from here: