scale property

double? scale
getter/setter pair

Font scale factor, serialised as scale.

from: "flutter" selects the SDK's rnKeys vocabulary, in which the appearance font block is font: {family, scale}. The previous spelling (typography: {fontResId, fontSizeSp}) belongs to the SDK's androidKeys set, which the Flutter path never selects, so the whole font block was silently discarded on both platforms.

Previously typed as dart:ffi's Float, which is a marker class for native struct fields: it cannot be constructed and assigning a JSON number to it threw at runtime. The native side expects a plain number.

Implementation

double? scale;