
To install them:
-- download the attached .zip file, unzip it to your Desktop,
-- start your DAW and load an Equalizer,
-- click [Settings] in the EQ graph area, then the "Sonogram" tab, the [Presets] button and the "Presets" entry in the menu (to open the Sonogram Presets Editor)
-- select "Root", then [Add] a new folder
-- with that folder selected, click [Import], then [Desktop] and select the sonogram_palettes preset
-- click the tick, then [Add] then the next tick.
Open that Presets Editor again and [Load] one of the presets (the top one is a copy of the default, for back-up).
PS With Sonogram off and Analyzer and Fill on, it looks a bit like the Aurora Borealis.
