I don't like orange too and probably never will.
I would like it if the orange changed to signal red for example.
My bigger note is that, I don't like the 'flatness' on a modern system.
Like the taskbar for example, it's default KDE with tranparancy enabled, while it can look better with an '3d' background.
Wallpapers with some 'glassy' or ' glossy' (3d or not) look for example will look good, especially when it's red not orange.
But I think the sabayon theme has another taste then me so I would change it anyway, I don't feel anything with orange and like futuristic glossy/glassy looks so I will change it always to my personal preferences.
I like it when people stare at my screen because it looks like a jewel, orange just don't do that for me, even when I live in the Netherlands and orange is our color for sports (like in soccer)
If I have to choose between the mentioned wallpapers above, please keep the old one, the second one looks like trippin on some LSD.
p.s. see the image of the signature below my post , you see that 3d looking shine over it ? Something like that is missing for me as a background for the default looking panels, just some depth to everything