How to use the plotnine.themes.elements.element_rect function in plotnine

def __init__(self, base_size=11, base_family='DejaVu Sans'):
        theme_gray.__init__(self, base_size, base_family)
        self.add_theme(theme(
            axis_ticks=element_line(color='#B3B3B3', size=0.5),
            legend_key=element_rect(fill='white', color='#7F7F7F', size=0.5),
            panel_background=element_rect(fill='white'),
            panel_border=element_rect(fill='None', color='#B3B3B3', size=1),
            panel_grid_major=element_line(color='#D9D9D9', size=0.5),
            panel_grid_minor=element_line(color='#EDEDED', size=0.25),
            strip_background=element_rect(
                fill='#B3B3B3', color='#B3B3B3', size=1),
            strip_text_x=element_text(color='white'),
            strip_text_y=element_text(color='white', angle=-90)
        ), inplace=True)

def __init__(self, base_size=11, base_family='DejaVu Sans'):
        theme_gray.__init__(self, base_size, base_family)
        self.add_theme(theme(
            axis_ticks=element_line(color='#666666', size=0.5),
            legend_key=element_rect(
                fill='#7F7F7F', color='#666666', size=0.5),
            panel_background=element_rect(fill='#7F7F7F', color='None'),
            panel_grid_major=element_line(color='#666666', size=0.5),
            panel_grid_minor=element_line(color='#737373', size=0.25),
            strip_background=element_rect(fill='#333333', color='None'),
            strip_text_x=element_text(color='white'),
            strip_text_y=element_text(color='white', angle=-90)
        ), inplace=True)

def __init__(self, base_size=11, base_family='DejaVu Sans'):
        theme_gray.__init__(self, base_size, base_family)
        self.add_theme(
            theme(axis_text=element_text(size=0.8*base_size),
                  axis_ticks=element_line(color='black'),
                  legend_key=element_rect(color='#CCCCCC'),
                  panel_background=element_rect(
                      fill='white'),
                  panel_border=element_rect(
                      fill='None', color='#7f7f7f'),
                  panel_grid_major=element_line(
                      color='#E5E5E5', size=0.8),
                  panel_grid_minor=element_line(
                      color='#FAFAFA', size=1),
                  strip_background=element_rect(
                      fill='#CCCCCC', color='#7F7F7F', size=1)),
            inplace=True)

def __init__(self, base_size=11, base_family='DejaVu Sans'):
        theme_gray.__init__(self, base_size, base_family)
        self.add_theme(theme(
            axis_ticks=element_line(color='#B3B3B3', size=0.5),
            legend_key=element_rect(fill='white', color='#7F7F7F', size=0.5),
            panel_background=element_rect(fill='white'),
            panel_border=element_rect(fill='None', color='#B3B3B3', size=1),
            panel_grid_major=element_line(color='#D9D9D9', size=0.5),
            panel_grid_minor=element_line(color='#EDEDED', size=0.25),
            strip_background=element_rect(
                fill='#B3B3B3', color='#B3B3B3', size=1),
            strip_text_x=element_text(color='white'),
            strip_text_y=element_text(color='white', angle=-90)
        ), inplace=True)

theme(
                text=element_text(
                    family=['xkcd', 'Humor Sans', 'Comic Sans MS']),
                axis_ticks=element_line(color='black', size=1.5),
                axis_ticks_direction='in',
                axis_ticks_length_major=6,
                legend_background=element_rect(
                    color='black', fill='None'),
                legend_key=element_rect(fill='None'),
                panel_border=element_rect(color='black', size=1.5),
                panel_grid=element_blank(),
                panel_background=element_rect(fill='white'),
                strip_background=element_rect(
                    color='black', fill='white'),
                strip_background_x=element_rect(width=2/3.),
                strip_background_y=element_rect(height=2/3.),
                strip_margin=-0.5,
            ),
            inplace=True)

        d = {'axes.unicode_minus': False,
             'path.sketch':  (scale, length, randomness),
             'path.effects':  [
                 patheffects.withStroke(
                     linewidth=stroke_size,
                     foreground=stroke_color)]
             }
        self._rcParams.update(d)

axis_ticks_length_minor=half_line/4,
            axis_ticks_minor=element_blank(),
            axis_ticks_direction='out',
            axis_ticks_pad=2,
            axis_title_x=element_text(
                va='top', margin={'t': half_line*0.8}),
            axis_title_y=element_text(
                angle=90, va='bottom', margin={'r': half_line*0.8}),

            dpi=get_option('dpi'),
            figure_size=get_option('figure_size'),

            # legend, None values are for parameters where the
            # drawing routines can make better decisions than
            # can be pre-determined in the theme.
            legend_background=element_rect(color='None'),
            legend_entry_spacing_x=5,
            legend_entry_spacing_y=2,
            legend_key=element_rect(fill='#F2F2F2',
                                    colour='None'),
            legend_key_size=base_size*0.8*1.8,
            legend_key_height=None,
            legend_key_width=None,
            legend_margin=0,     # points
            legend_spacing=10,   # points
            legend_text=element_text(
                size=base_size*0.8, ha='left',
                margin={'t': 3, 'b': 3, 'l': 3, 'r': 3,
                        'units': 'pt'}),
            legend_text_legend=element_text(va='baseline'),
            legend_text_colorbar=element_text(va='center'),
            legend_title=element_text(ha='left',

def __init__(self, base_size=11, base_family='DejaVu Sans'):
        theme_gray.__init__(self, base_size, base_family)
        bgcolor = '#F0F0F0'
        self.add_theme(
            theme(
                axis_ticks=element_blank(),
                title=element_text(color='#3C3C3C'),
                legend_background=element_rect(fill='None'),
                legend_key=element_rect(fill='#E0E0E0'),
                panel_background=element_rect(fill=bgcolor),
                panel_border=element_blank(),
                panel_grid_major=element_line(
                    color='#D5D5D5', linetype='solid', size=1),
                panel_grid_minor=element_blank(),
                plot_background=element_rect(
                    fill=bgcolor, color=bgcolor, size=1),
                strip_background=element_rect(size=0)),
            inplace=True)

def __init__(self, base_size=12, scale=1, length=100, randomness=2,
                 stroke_size=4, stroke_color='white'):
        theme_gray.__init__(self, base_size)
        self.add_theme(
            theme(
                text=element_text(
                    family=['xkcd', 'Humor Sans', 'Comic Sans MS']),
                axis_ticks=element_line(color='black', size=1.5),
                axis_ticks_direction='in',
                axis_ticks_length_major=6,
                legend_background=element_rect(
                    color='black', fill='None'),
                legend_key=element_rect(fill='None'),
                panel_border=element_rect(color='black', size=1.5),
                panel_grid=element_blank(),
                panel_background=element_rect(fill='white'),
                strip_background=element_rect(
                    color='black', fill='white'),
                strip_background_x=element_rect(width=2/3.),
                strip_background_y=element_rect(height=2/3.),
                strip_margin=-0.5,
            ),
            inplace=True)

        d = {'axes.unicode_minus': False,
             'path.sketch':  (scale, length, randomness),
             'path.effects':  [
                 patheffects.withStroke(
                     linewidth=stroke_size,

def __init__(self, base_size=11, base_family='DejaVu Sans'):
        theme_bw.__init__(self, base_size, base_family)
        self.add_theme(
            theme(panel_border=element_blank(),
                  axis_line=element_line(color='black'),
                  panel_grid_major=element_line(),
                  panel_grid_major_x=element_blank(),
                  panel_grid_major_y=element_blank(),
                  panel_grid_minor=element_line(),
                  panel_grid_minor_x=element_blank(),
                  panel_grid_minor_y=element_blank(),
                  strip_background=element_rect(
                      colour='black', fill='None', size=1),
                  legend_key=element_blank()),
            inplace=True)

def __init__(self, base_size=11, base_family='DejaVu Sans'):
        theme_gray.__init__(self, base_size, base_family)
        self.add_theme(theme(
            axis_text=element_text(color='black', size=base_size*0.8),
            axis_ticks=element_line(color='black', size=0.5),
            legend_key=element_rect(color='black', size=0.5),
            panel_background=element_rect(fill='white'),
            panel_border=element_rect(fill='None', color='black', size=1),
            panel_grid_major=element_line(color='black', size=0.1),
            panel_grid_minor=element_line(color='black', size=0.02),
            strip_background=element_rect(
                fill='black', color='black', size=1),
            strip_text_x=element_text(color='white'),
            strip_text_y=element_text(color='white', angle=-90)
        ), inplace=True)