D-9

v-1.0
---
1. memo list => set size

	==> done
D-9

v-2.0
---
1. NEW: ListPreference
	=> first attempt

	==> N/W
D-9

v-2.1
---
1. Custom pref layout

	==> N/W
D-9

v-3.0
---
1. show spinner in the prefs list

	==> N/W