The unit is available in black and white.
Both, for the bug to exhibit an external change (its color), there must first be an internal change that triggers the color change (its color). Thus, the internal change facilitates the external change. The predator is an external factor that causes an internal reaction (maybe it's fear) in the bug, that internal reaction then triggers an external factor which is the change in color. Just a personal opinion.
Pyrite
pyrite
The color purple is neither an internal nor an external conflict. It is a physical attribute with no direct association to conflicts in literature or storytelling.
Black and white
arterial
Arterial
Arterial
As long as the external display has 32 bit color supported and the MacBook's graphics card supports this resolution and color depth, then this would be possible.
YES!
red
Arterial