has been hijacked
100 is too short
add widget for controlling brush sensitivity
set sensitivity value
brush sensitivity alpha
add todo
should know when it is not far enough
it should know when its far enough
calculated the closest point
move
split up functions
split up functions
split up functions
split up function
split up functions for circleOutline
split up function for rect outline
move extra libs
simplify grid
set canvas property when initiating canvas
binding callback to this