A friend of mine was looking for the foo_uie_vis_channel_spectrum.dll component and was having trouble finding it on the web. So, here it is.

I don't know what version it is because I don't use Columns UI, so there might be something more recent.

Anyhow, here you go.

Click to view attachment

Your version seem old.

Here's the DEV website for the latest version.

Ah, thanks.

Couldn't find the link to that site anywhere.