Originally Posted by codeMonkey

There's a guide to LED Patterns on the n900 here.

The easiest way to get a darker purple is to use a more simple (in terms of not using increments/decrements) pattern like the below:

Code:

PatternCommunicationSMS=30;1;0;rB;9d8070007f007f0040337f007f000000;9d8070007f007f0040ff7f007f000000

Note that this should all be on one line.

That gives a fairly pleasant dark purple.
Given time I can probably get one fading in and out, but I'll leave that until later.