adds efilter which I forgot, adds buttons for efilter
transparent background, filter layer/editor
use embedded mask, use db for serializing tool data
adds first saving functionality
implement eentercolor (generic color picker), adds initlayer editor function
adds color selection (wip), adds brush and colors (p9image)
moves layers a level down, in preparation for brushes and other folders
bug fixes, native zoom and global menu
adds first drawing functionality
adds editor initialization for static data
improve performance, fixes cursor issues, general code improvement
closes file descriptors of resample
adds zoom support, images should be r8g8b8(a8), masks can be k8 or r8g8b8
fixes nil image if p9image has no mask, adds example
adds first working prototype, CLI mode only