pub fn note_cell(fb: &mut Framebuffer, x: i32, y: i32, note: Note)Expand description
One tracker note cell at (x, y), in PICO-8’s field layout/colours: letter
(white) · # accidental · octave (light grey) · instrument (pink, or green
when a custom instrument) · volume (blue) · effect (grey . / orange digit).
A silent step (volume 0) renders as a faint dotted line.