AUTORANGE_KEY = 'autorange'
AVERAGE_KEY = 'average'
AVG_ALPHA_KEY = 'avg_alpha'
-EMULATE_ANALOG_KEY = 'emulate_analog'
-ANALOG_ALPHA_KEY = 'analog_alpha'
+USE_PERSISTENCE_KEY = 'use_persistence'
+PERSIST_ALPHA_KEY = 'persist_alpha'
BASEBAND_FREQ_KEY = 'baseband_freq'
BETA_KEY = 'beta'
COLOR_MODE_KEY = 'color_mode'