Creating a pallette for a created layer

Hello fellow open-mappers,
I have a created layer that currently displays up to 7 different
"line-types" each distinguished by one of seven different colors. On the
layer tool, when I click the pallette button for this layer, obviously I get
a "No Pallette" display. I would like to know if anyone knows how to create
a pallette for this layer with the following parameters:
1)Kinda like how the rpf coverage tool allows you to turn off different map
sets, the pallette tool I want to create would allow you to turn on and off
the individual line-types. The reason for asking this, is that this would
probably be more user-friendly than making each individual lines a separate
layer. For a bit of clarification, this is a layer where I have for example
20 lines of color 1, 50 lines of color 2, etc, and I'd like to be able to
not show color 1, but do show color 2, or have both on or neither on.
2)If possible, I'd like to also give to user the ability to change the color
of the lines and save the user's preference dynamically. This is not too
high a priority as the other ability is more important to the user.

If anyone has some basic skeletons that I can use to create such a pallette,
you help would be greatly appreciated. I'm a bit of a novice at this open
map stuff, so my only other question would be where to place this code for
the pallette? Should I put it in the same class as the rest of the
infomation for the layer? Or should it become a separate class called by
the layer's class. Again any feedback and information would be greatly
appreciated.

-Mike

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