[QoL] Blinking light on assembler when functioning and full

[Fatsack]

A light on the corner of assemblers, blinking when crafting, on when full of product, off when short on ingredients.

When making large blueprints or spaghetti, especially with Alt-mode on, it is very difficult to see the assembler animation to tell what is working and what is not. Also if an assembler is backed up full of product, the animation is no different than when it is short on ingredients. A light indicator on the corner that is not covered by alt-mode icons would be a good QoL improvement.

Bonus points - also be able to change the light color with a circuit signal.

Thanks,
Fatsack

[Tertius]

There is a mod to visualize machine status: https://mods.factorio.com/mod/BottleneckLite