thumbs.driver
The thumbnail library which is being used by Kirby's thumb function/class ('gd' or 'im')
Default value
'gd'
Example
c::set('thumbs.driver','gd');
Available Drivers
Kirby comes with drivers for GD Lib (gd) and ImageMagick (im), which can be used out of the box.
Custom Driver
Read more about how to setup your own custom thumbnail driver.