Source
void removeTextureAtlas(String name, {bool dispose:true}) {
var resourceManagerResource = _removeResource("TextureAtlas", name);
var textureAtlas = resourceManagerResource?.value;
if (textureAtlas is TextureAtlas && dispose) {
for (var textureAtlasFrame in textureAtlas.frames) {
textureAtlasFrame.bitmapData.renderTexture.dispose();
}
}
}