This is computer science. You are only limited by your notion of what is possible, do not let your tools come between your imagination and the canvas. Stop thinking about what is possible with the technology in your hand, you may only dream of tomorrow. Your dreams stop only at your desire; out of the world's reach they may lie. Abstract that detail away, and keep abstracting until your dream is only an oracle call away. These oracles do not exist today, you will witness their birth, die for it even. You call the oracle in your dream and the oracle responds you with power. Abstraction unraveling is a sin for the dreamer, crave utility, crave impossibility. And once when you have dreamt up your oracles and your strength, you must wake up and revaluate. Revaluate your majestic strength. Your oracles may not respond to your mean, for they recognize their capacity and may choose to serve a dreamer who peaks. The oracles may be conjured up in your dreams but they are not conformed to your dreams alone. If your imagination is not peak then your oracles extinguish.
Once you have revaluated these causes, and you have fulfilled your capacity of strength, and once you have made the oracles smile then you may open your eyes and paint oracles onto your canvas. You may tear pixels from catalogues, you may even let another artist fill for you, do not let ego hinder your portraits. Do not stop to understand the colors, once the oracle emerges it may be understood but now is not the time. You may have a dozen painted oracles at your command, they may take away your brushes, your hands. The painted oracles may tie you up in darkness, all is acceptable till the dreamer is satisfied with the canvas. A gallon of water has been poured upon to put you in the servitude of the dreamer, your desire to paint will be torn, your desire to create will be stabbed.
The dreamer who dreams in monochrome shall never require a lighter shade of blue, but a dreamer that demands the color of misery will fabricate all the oracles to pierce the palette of his eyes until he feels miserable.