Silly script to update the colors of gnome terminal to be uniformly spaced around the wheel.

gnome_terminal_colors.py

#!/usr/bin/python
from gi.repository import Gio, GLib


class Color(object):
    def __init__(self, red, green, blue):
        self.red = red
        self.green = green
        self.blue = blue

    @classmethod
    def from_rgb(self, (r, g, b)):
        return Color(r, g, b)

    @classmethod
    def from_hsv(self, (h, s, v)):
        s /= 100.0
        v /= 100.0
        c = v * s
        x = c * (1 - abs((h/60.0) % 2 - 1))
        m = v - c
        for step, seq in enumerate([
                    (c, x, 0),
                    (x, c, 0),
                    (0, c, x),
                    (0, x, c),
                    (x, 0, c),
                    (c, 0, x)]):
            upper_bound = 60 * (1 + step)
            r_p, g_p, b_p = seq
            if not upper_bound < h:
                break
        r = (r_p + m) * 255.0
        g = (g_p + m) * 255.0
        b = (b_p + m) * 255.0
        return Color(r, g, b)

    @classmethod
    def from_hex(self, hexcolor):
        pass

    def hexstr(self):
        return "".join("{:02X}".format(int(round(x))) for x in [self.red, self.green, self.blue])

    def __str__(self):
        return "rgb({}, {}, {})".format(
            int(round(self.red)),
            int(round(self.green)),
            int(round(self.blue)))

    def __repr__(self):
        return str(self)

circle = 360.0
pieces = 8
colors = []
for saturation in [50, 70]:
    for i in xrange(pieces):
        hue = i * circle / pieces
        color = Color.from_hsv((hue, saturation, 100))
        colors.append(color)

profile_list_registry = Gio.Settings.new("org.gnome.Terminal.ProfilesList")
profile_id = profile_list_registry['default']
my_profile = Gio.Settings.new_with_path(
    "org.gnome.Terminal.Legacy.Profile",
    "/org/gnome/terminal/legacy/profiles:/:{}/".format(profile_id)
)

print my_profile['palette']
my_profile['palette'] = [str(c) for c in colors]
print my_profile['palette']