OptionaliconVertical gap between the icon and its label. Accepts 0 (icon flush against the label); a
negative value is ignored.
OptionaliconWidth and height of each tab's icon. Requires a value greater than zero — an omitted or <= 0
value keeps the default.
OptionallabelTab-label font size. Requires a value greater than zero — an omitted or <= 0 value keeps
the default.
OptionallabelsWhether tab titles are shown. "hidden" drops every title and vertically centers the icons,
producing an icon-only bar. A tab whose title is empty is label-less regardless of this
setting. An absent or unknown value falls back to "shown".
OptionalpaddingEmpty space below the label (or below the icon, when labels are hidden), which adds to the
bar's total height. Accepts 0; a negative value is ignored.
OptionalpaddingEmpty space above the icon, which adds to the bar's total height. Accepts 0; a negative value
is ignored.
OptionaltopThe bar's top border, where thickness is a dimension and color a hex string.
A thickness of 0 (or any value <= 0) removes the border even when a color is set.
Otherwise the border renders whenever a thickness greater than zero or a color is
present; when both are absent there is no border. While the border is active each sub-field
falls back on its own: an omitted thickness becomes 1, an omitted or invalid color
becomes #DBDDE0.
Layout knobs of the
classictheme — the default look: a row of tabs, each an icon above its label.All dimensions are plain numbers, and the same value renders at the same physical size on every device and platform — so a single number is all you need, with no per-screen variants. The bar height is not configurable: it is sized by its content —
paddingTop+ icon [+iconLabelSpacing+ label] +paddingBottom. With labels hidden the icon is centered vertically instead.