I don't even know if the stock LEDs on the Poker are all blue?... Be aware that there are series resistors for the LEDs. Red LEDs usually have a smaller voltage drop than other LEDs, so there may be a small risk your new LEDs will emit blue smoke rather than what you want.. You may or may not need to change the resistors as well. It may be a good idea to at least figure out the value of the stock resistors and check that the voltage used for the LED driving is 5V and not something else.