readAsBackground method
Theme
readAsBackground(})
reads a theme for use as a background theme
Implementation
Theme readAsBackground(Map<String, dynamic> json,
{required bool Function(Map<String, dynamic> layer) layerPredicate}) {
final backgroundTheme = <String, dynamic>{};
for (final entry in json.entries) {
backgroundTheme[entry.key] = entry.value;
}
final layers = json['layers'] as List<dynamic>?;
final newLayers = [];
layers?.forEach((layer) {
if (layer is Map<String, dynamic> && layerPredicate(layer)) {
newLayers.add(layer);
}
});
backgroundTheme['id'] = (json['id'] ?? 'default') + '_bg';
backgroundTheme['layers'] = newLayers;
return read(backgroundTheme);
}