Background colour does not change at once, changes gradually.

[bananabook]

To recreate:
start with black characters and black background:
python3 unimatrix.py -c black -g black

now change background to another color, for example by pressing
!

Screenshot of behaviour

The color does not change at once, but rather change with incoming characters.

The behavior was easy to reproduce.

[Apple-Lion]

Seems logical that you wouldn’t update the units unaffected by change, hence the background color is only updated upon change.

[bananabook]

Seems logical that you wouldn’t update the units unaffected by change, hence the background color is only updated upon change.

You think so? But it does not look good and it does not happen going from any other color to any other color. So I do not think this is wanted behaviour.

Or are you worried about performance?

[petaflot]

here it all changes at once, including (most!) times when changing font color.

personally, I'd prefer if color as changed with new chars only (possible to make a rainbow)