Code

from manimlib.imports import *

class ClockOrganization(VGroup):
  CONFIG = {
    "numbers" : 4,
    "radius" : 3.1,
    "color" : WHITE
  }

  def __init__(self, **kwargs):
    digest_config(self, kwargs, locals())
    self.generate_nodes()
    VGroup.__init__(self, *self.node_list,**kwargs)

  def generate_nodes(self):
    self.node_list = []
    for i in range(self.numbers):
      mobject = VMobject()
      number = TexMobject(str(i+1))
      circle = Circle(radius=0.4,color=self.color)
      mobject.add(number)
      mobject.add(circle)
      mobject.move_to(
        self.radius * np.cos((-TAU / self.numbers) * i + 17*TAU / 84) * RIGHT
        + self.radius * np.sin((-TAU / self.numbers) * i + 17*TAU / 84) * UP
      )
      self.node_list.append(mobject)

  def color_node(self, node, color):
    selected_node=self.node_list[node].copy()
    selected_node.set_color(color)
    return selected_node

COLOR_LIST = ["#3b661a",
              "#ea0099",
              "#00dc82",
              "#6047b8",
              "#c788ff",
              "#65b000",
              "#ffcd34",
              "#8b3798",
              "#d29800",
              "#535593",
              "#d85e00",
              "#6debff",
              "#a62370",
              "#01b9a3",
              "#f5b5ff",
              "#806700",
              "#efd1ff",
              "#844e28",
              "#c3d9ff",
              "#3b6355",
              "#ffe6f4"]

COORDINATE_LIST = [0.818*UP,1*RIGHT+0.241*UP]

class Testing(Scene):
  def construct(self):
    test = ClockOrganization(numbers=21)
    self.play(Write(test), run_time=1.5)
    self.wait(2)
    for group in range(test.numbers):
      self.play(ReplacementTransform(
        test.node_list[group],
        test.color_node(group,COLOR_LIST[group])
      ))
    for i in range(len(COORDINATE_LIST)):
      replacement_node = test[i].copy()
      replacement_node.move_to(COORDINATE_LIST[i])
      self.play(ReplacementTransform(
        test[i],
        replacement_node
      ))
    self.wait()