增加更多主题选择并修复了bug

bin/tests/db_test.py

@@ -0,0 +1,7 @@
+import sqlite3
+
+conn = sqlite3.connect('../assets/theme.db')
+cursor = conn.cursor()
+cursor.execute('select * from sqlite_master where type="table"')
+data = cursor.fetchall()
+print(data)