Animating stripes: Initial commit - correct static placement, still no animation, 50-year cohort bar, etc
Animating stripes: FINALLY a more solid commit… Works and treats and interpolates data the (mostly) correct way
Animating stripes: Fixing graphical artifacts, fixing 50-year cohort bar
Animating stripes: commit for "simple" mode + graphical masking of bars below age 0, etc