Style properties are passed as keyword arguments to element functions. This replaces the old fluent setter pattern.

Pass hex strings (#RRGGBB or #AARRGGBB) to color props:

pn.Text("Hello", color="#FF3366")
pn.Button("Tap", background_color="#FF1E88E5", color="#FFFFFF")
pn.Column(pn.Text("Content"), background_color="#FFF5F5F5")

Text and Button accept font_size, color, bold, and text_align:

pn.Text("Title", font_size=24, bold=True, text_align="center")
pn.Text("Subtitle", font_size=14, color="#666666")

Column (vertical) and Row (horizontal) replace the old StackView:

pn.Column(
    pn.Text("Username"),
    pn.TextInput(placeholder="Enter username"),
    pn.Text("Password"),
    pn.TextInput(placeholder="Enter password", secure=True),
    pn.Button("Login", on_click=handle_login),
    spacing=8,
    padding=16,
    alignment="fill",
)

• spacing=N sets the gap between children in dp (Android) / points (iOS).

• padding=16 — all sides
• padding={"horizontal": 12, "vertical": 8} — per axis
• padding={"left": 8, "top": 16, "right": 8, "bottom": 16} — per side

Android: applied via setPadding in dp. iOS: best-effort via layout margins.

Cross-axis alignment: "fill", "center", "leading" / "start", "trailing" / "end".

Wrap content in a ScrollView:

pn.ScrollView(
    pn.Column(
        pn.Text("Item 1"),
        pn.Text("Item 2"),
        # ... many items
        spacing=8,
    )
)