After some trial and error with the ColorGradient class I hacked this code... Im more or less getting the number of colors I want but when I change the colorCount from 7 to 10 it returns 9 colors but when I change it to 4 it works... also some other numbers work but there are too many exceptions... The " (float) colorCount + 2f" on line 29 a hack and works sometimes but not always. I tried some other variations but couldnt get it to work...

2. int[] colors = new int[] { 
3.   0xFF362624, 0xFFD11B47, 0xFFD18E58, 0xFFD9C271,
4.   0xFFBCE0C7
5. };
6. int[] newColors;
7. 
   
8. ColorList colorRangeList;
9. ColorList colorGradientList;
10. 
    
11. public void setup() {
12.   size(400, 300);
13. 
    
14.   setupColors();
15. }
16. 
    
17. public void setupColors() {
18.   int colorCount = 7;
19. 
    
20.   ColorRange cr = new ColorRange(new ColorList(colors));
21. 
    
22.   colorRangeList = cr.getColors(colorCount);
23.   colorRangeList.sortByDistance(false);
24. 
    
25.   ColorGradient cg = new ColorGradient();
26. 
    
27.   for (int i = 0; i < colors.length; i++) {
28.     cg.addColorAt((i + 1)
29.       * (((float) colorCount + 2f) / (float) colors.length),
30.     TColor.newARGB(colors[i]));
31.   }
32. 
    
33.   colorGradientList = cg.calcGradient();
34. }
35. 
    
36. public void draw() {
37.   for (int i = 0; i < colors.length; i++) {
38.     float w = (float) width / colors.length;
39.     fill(colors[i]);
40.     rect(i * w, 0, w, 100);
41.   }
42. 
    
43.   for (int i = 0; i < colorRangeList.size(); i++) {
44.     float w = (float) width / colorRangeList.size();
45.     fill(colorRangeList.get(i).toARGB());
46.     rect(i * w, 100, w, 100);
47.   }
48. 
    
49.   for (int i = 0; i < colorGradientList.size(); i++) {
50.     float w = (float) width / colorGradientList.size();
51.     fill(colorGradientList.get(i).toARGB());
52.     rect(i * w, 200, w, 100);
53.   }
54. }
55. 
    
56. public void keyPressed() {
57.   setupColors();
58. }