VikLayerParamData tmp;
tmp.u = VIK_CONFIG_DEFAULT_TILE_AGE / 86400; // Now in days
a_preferences_register(prefs, tmp, VIKING_PREFERENCES_GROUP_KEY);
VikLayerParamData tmp;
tmp.u = VIK_CONFIG_DEFAULT_TILE_AGE / 86400; // Now in days
a_preferences_register(prefs, tmp, VIKING_PREFERENCES_GROUP_KEY);