Dual color test

After years of research, I've made this state of art colour calibration test.
No seriously, it took me 2 minutes to create but this makes me progress at light speed on tuning my dual colour prints as this is much faster than printing a multi colour benchy.

With this one, you can see in a few minutes if the size of the purge tower is enough or not to not mix the colours.
You don't have to let it run complelety, you see right on the few 1st layers if the tower purge was enough or not.