"Variable already an alias" - is there a way to avoid this?

[CuriousOne]

And by adding properly synced multiplexing, even nicer effects can be obtained. Too bad they do not make RGB 7 segment displays in manageable size or price....



As you can see, greens are less bright than reds, this is due fact, that there are two leds in series for each color and each segment, so driving them from 5V makes green look less brighter. To achieve same level of brightness of green as red has, it needs about 5.8V, which is way too high and most likely will burn my MCU, so I'm avoiding that at all costs.