Adaptive grid class names

Flex grows are available with values from 1 to 12

flex-grow-1
flex-grow-1
flex-grow-1
flex-grow-1
flex-grow-1
flex-grow-2
flex-grow-1
flex-grow-3
flex-grow-2
flex-grow-4
flex-grow-8
flex-grow-3
flex-grow-9
single flex-grow-12

But as you can see there s a compatible mathematical grid, you just need right coefficient

flex-grow-4
flex-grow-12

sdk-xs/xm/xl available with values from 1 to 4, but usage not so different and pretty naive

sdk-xs-1
sdk-xs-2
sdk-xs-2
sdk-xs-3
sdk-xs-3
sdk-xs-3
sdk-xs-4
sdk-xs-4
sdk-xs-4
sdk-xs-4
sdk-xm-1
sdk-xm-2
sdk-xm-3
sdk-xm-3
sdk-xm-4
sdk-xm-4
sdk-xm-4
sdk-xl-1
sdk-xl-2
sdk-xl-3
sdk-xl-4
sdk-xl-4