All style and behaviour properties are passed as keyword arguments to element functions.

pn.Text(text, font_size=None, color=None, bold=False, text_align=None,
        background_color=None, max_lines=None)

• text — display string
• font_size — size in sp (Android) / pt (iOS)
• color — text colour (#RRGGBB or #AARRGGBB)
• bold — bold weight
• text_align — "left", "center", or "right"
• background_color — view background
• max_lines — limit visible lines

pn.Button(title, on_click=None, color=None, background_color=None,
          font_size=None, enabled=True)

• title — button label
• on_click — callback () -> None
• color — title text colour
• background_color — button background
• enabled — interactive state

pn.Column(*children, spacing=0, padding=None, alignment=None, background_color=None)
pn.Row(*children, spacing=0, padding=None, alignment=None, background_color=None)

• spacing — gap between children (dp / pt)
• padding — inner padding (int for all sides, or dict with horizontal, vertical, left, top, right, bottom)
• alignment — cross-axis: "fill", "center", "leading", "trailing", "start", "end", "top", "bottom"
• background_color — container background

pn.ScrollView(child, background_color=None)

pn.TextInput(value="", placeholder="", on_change=None, secure=False,
             font_size=None, color=None, background_color=None)

• on_change — callback (str) -> None receiving new text

pn.Image(source="", width=None, height=None, scale_type=None, background_color=None)

pn.Switch(value=False, on_change=None)

• on_change — callback (bool) -> None

pn.ProgressBar(value=0.0, background_color=None)

• value — 0.0 to 1.0

pn.ActivityIndicator(animating=True)

pn.WebView(url="")

pn.Spacer(size=None)

• size — fixed dimension in dp / pt