Distortion is a dark yellow, dynamics and EQ are both bright yellow, modulation effects are blue, delay is green, reverb is orange, pitch and filter are both purple, looper is grey.
You can assign effects manually to a specific switch, so you know where it will always be. So for example, you can assign distortion to be on the switch with the up arrow and delay could always be on the D switch; then just do it like that across all your presets.