Thin 100Fix the core. Scale everything else.
Extra Light 200Fix the core. Scale everything else.
Light 300Fix the core. Scale everything else.
Regular 400Fix the core. Scale everything else.
Medium 500Fix the core. Scale everything else.
Semibold 600Fix the core. Scale everything else.
Bold 700Fix the core. Scale everything else.
Extra Bold 800Fix the core. Scale everything else.
Black 900Fix the core. Scale everything else.