class_docstr: Color choosing push button
class_docstr_tok: ["Color","choosing","push","button"]
code: def __init__(self, parent=None):
      QtWidgets.QPushButton.__init__(self, parent)
      self.setFixedSize(20, 20)
      self.setIconSize(QtCore.QSize(12, 12))
      self.clicked.connect(self.choose_color)
      self._color = QtGui.QColor()
  
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import copy
  import datetime
  import warnings
  import six
  from matplotlib import colors
  from matplotlib.backends.qt_compat import QtGui, QtWidgets, QtCore
label_desc: Use image node_id 1 to create a new ColorButton object from inherited base classes: QtWidgets with example: obj = ColorButton(parent)