I loaded the DigisparkRGB example sketch and wired it to the RGB LED. I thought it would be interesting to extend the wiring to the individual LEDs to see which colors were mixing to make the color on the RGB LED. It worked; except the yellow individual LED represented a blue LED.
I just loaded the RGB example and wired the single LEDs in serial, I think. And now that I look at the picture, I see I wired the individual LEDs back to the ATTiny85 module outputs. And the ground went from module to RGB to individual LEDs.
I have looked at Daniel's code. And this is what your get when you skip forward. I missed the PWM output. Need to work on the wiring a little more. Even with just the colors changing, it appeared the intensity what changing.