miracle2k

class ColorDict(object):
    """Provides a color for each key, trying to create as distinct a set
    of colors as possible.
    """

    # Minimum difference in hue between unique colors, before we begin
    # to recycle old colors rather than generating new ones.
    THRESHOLD = 0.05

    def __init__(self):

miracle2k

// Modify contrast using a ColorMatrix (on Android)
ColorMatrixColorFilter setContrast(float contrast) {
    float scale = contrast + 1.f;
    float translate = (-.5f * scale + .5f) * 255.f;
    float[] array = new float[] {
        scale, 0, 0, 0, translate,
        0, scale, 0, 0, translate,
        0, 0, scale, 0, translate,
        0, 0, 0, 1, 0};
    ColorMatrix matrix = new ColorMatrix(array);