@staticmethod
    def custom_color(index):
        qrgb = QColorDialog.customColor(index)
        return color_from_qcolor(QColor.fromRgba(qrgb))
Construct element model. Elemental line that can be add include elemental
dataset/ETHPy150Open ContinuumIO/ashiba/enaml/enaml/qt/qt_color_dialog.py/QtColorDialog.custom_color--crossover with--dataset/ETHPy150Open scikit-beam/scikit-beam/skbeam/core/fitting/xrf_model.py/ModelSpectrum.setup_element_model