rootSize property Null safety
Retrieve the total size of all stored tiles in kibibytes (KiB)
Prefer rootSizeAsync to avoid blocking the UI thread. Otherwise, this has slightly better performance.
Internally sums up the size of all stores (using StoreStats.storeSize).
Implementation
double get rootSize =>
storesAvailable.map((e) => e.stats.storeSize).sum / 1024;