Deckboy v0.89.5

Text mode's picture ink now draws each cell in the clip's own colour. It was
quantising every cell to a 16-entry EGA palette whose only mid-tones are grey,
so ordinary footage — which is mostly desaturated mid-tones — came out grey and
white nearly everywhere. Measured on one held frame: 19.5% of the source's lit
pixels are desaturated, and 89.3% of the glyphs drawn from it were. It is 20.1%
now, against the source's 19.5%.

The quantised look is what the palette ink is for, and that is unchanged.