@synth-ruiner What @sangheeta said. I just installed nautilus-folder-icons from the repo to select folder colors from the context menu. Thank you for detailing the default way, though. I didn't know you could drag the icon over like that in GNOME. Useful feature.
Testing unstable. New GNOME is incredibly performant and matured (thank you, Shell devs & Solus team). Respun the latest 3.36 Plata theme with teal500 as primary color, teal300 accent and orange500 destructive elements. Also used papirus-folders to change default folder icons to teal. Bibata Classic cursor forever.
Background photo by Marjan Blanc -- https://unsplash.com/photos/DLg7YmBgJp0