Re-design for common anode instead of common cathode

Question

I have a very simple circuit, and I want to use a tri-color LED to indicate which 1 of 3 outputs is on. I currently have a design that works for a common cathode 4-pin LED. However, I have easier AND cheaper access to this function of LED with a common anode.

It has to be red, yellow, and green. Each output has to drive a separate 10Ω resistor, exactly as shown in the pics. Only 1 output is on at a time.

The picture on the left is common cathode, and works as intended. How can you change the picture on the right (common anode), in order to acheive the same result?

Answer 1

You could do this (resistor only shown for one channel). You could use a single ULN2003A in place of all the transistors and all the resistors except for the 500R, and that is precisely what I would suggest doing.

^{simulate this circuit – Schematic created using CircuitLab}

Answer 2

If you don't want to use additional components then the only alternative I see is reversing the sources, assuming the load nature and what is shown as source allows this.

^{simulate this circuit – Schematic created using CircuitLab}