colorPalettes.pde

PFont font;

void setup()
{
    size(500, 600);
    background(200);
    font = createFont("Courier", 20);
    textFont(font);
    
    ArrayList<Palette> palettes = getTopPalettes();
    
    int y = 20;
    for (Palette p: palettes)
    {
        for (int i = 0; i < p.colorCount; i++)
        {
            fill(p.colors[i]);
            ellipse((i + 1) * 20, y, 20, 20);
        }
        text(p.title, 120, y + 7);
        y += 25;
    }
}

ArrayList<Palette> getTopPalettes()
{
    ArrayList<Palette> palettes = new ArrayList<Palette>();
    
    JSONArray jsonPalettes = loadJSONArray("http://www.colourlovers.com/api/palettes/top?format=json");
    
    for (int i = 0; i < jsonPalettes.size(); i++)
    {
        JSONObject p = jsonPalettes.getJSONObject(i);
        JSONArray extractedColors = p.getJSONArray("colors");
        int[] colors = new int[extractedColors.size()];
        for (int j = 0; j < extractedColors.size(); j++)
        {
            colors[j] = unhex("FF" + extractedColors.getString(j));
        }
        
        Palette palette = new Palette(colors, p.getString("title"));
        palettes.add(palette);
    }
    
    return palettes;
}

Palette.pde

public class Palette
{
    public int[] colors;
    public int colorCount;
    public String title;
    
    public Palette(int[] colors, String title)
    {
        this.colors = colors;
        this.colorCount = colors.length;
        this.title = title;
    }
}