Having never actually interacted with a mac from that era, are the grey and white stripes in the toolbar screenshots actually visible on the screen or are they an artifact of old screenshots on modern displays?
The macs of the era had a matching theme to their design. Zoom into the front face of the Power Mac G4 "graphite" tower here:
https://upload.wikimedia.org/wikipedia/commons/c/ce/Apple_G4...
They really didn't look bad, though. I think if you zoom the image larger it will give you a better impression of what they actually felt like.
In hindsight, the pinstriping in the first couple of releases was a bit much, but sadly the buttons also got toned down at the same time as the pinstripes, and they've never looked as good since.
/s