Im only doing this because I saw a tutorial about this a little bit ago, and I thought that it could have been better.
Tutorial:
1: Open Notepad
2: Go here
http://www.colorschemer.com/online.html3: Choose a color that you want
4: Then copy the "R", "G" and "B" numbers into notepad (Ill talk about transparency at the end)
5: Repeat steps 3 and 4 about 10 times, also, the different colors should be under each other
6: Then, underneath all those colors, put the following: DIV: Namehere (Example: "DIV: Solid Colors"
7: Then, when your done with that, save it to your desktop as "colorSet"
8: Open another Notepad and write the following:
Title: Yourcolorset'snamehere
Author: Yournamehere
Then write a short description here
9: Then save that to your desktop as "Description"
10: Now, highlight both of those files and right click
11: In the menu that pops up should be an option saying "Send to compressed folder" Click on it
12: Then put it in C:\Program Files\Blockland\Add-Ons
For Vista put it in C:\Blockland\Add-Ons
For Mac put it in MacintoshHD\Applications\Blockland\Add-ons
Or wherever you have your Blockland folder.
13: Then, hopefully you have RTB, open Blockland, and click on "Start Game". There should be a button that says "Color Manager". Click on it and select your Colorset.
14: Boom, your done!
Other Information
Here is an example:
255 0 0 255 //Red
0 255 0 255 //Green
0 0 255 255 //Blue
DIV: Primary Colors
255 255 0 255 //Yellow
255 0 255 255 //Purple
0 255 255 255 //Cyan
DIV: Secondary Colors
255 0 0 127 //Red transparent
0 255 0 127 //Green transparent
0 0 255 127 //Blue transparent
DIV: Transparent Primary Colors
255 255 0 127 //Yellow transparent
255 0 255 127 //Purple transparent
0 255 255 127 //Cyan transparent
DIV: Transparent Secondary Colors
Now, as I said before, I mentioned I would talk about transparency. If you look back at those colors in the example, you notice how they had that las "255" at the end? Well, that number determines how transparent that color will be. "255" makes it solid, no transparency. But if you replace that last 255 with "0" then you make that color invisible. But let's say, give it 127, then that color is half transparent. Experiment with it.