animations options are confusing

[Stephen Moore]

Excuse me @delfick for coming back so soon ^^. Could you tell what's wrong with the "fade_in_speed" syntax? I haven't been able to set that neither the twinkles_color_range field... I can't figure out the proper syntax

thanks

EDIT

Sorry I forgot to add one of my numerours attempts, but I can't get it to work. Could you please share an example for the animations options? thanks

Originally posted by @obaldius in #82 (comment)