They look like another form of Pivot Point calculation. I googled it and found a few .pdfs but the links were all defunct. Searched ET for "Likos" and it returned no results. edit - I have them in my charting program which is where I found them. I'll post screenshots if you want.
Maybe some pics would get some results. Here they are applied to the YMM8 from 5/20 through 5/25 on a 700 constant volume chart (I zoomed out a lot which is why there are 5 days' worth of data in this pic). They are set by default to begin a new day at 12am (midnight). edit - hang on for a better pic...