Hi Tim,

> You now have an invisible, or a column of invisible buttons.
> Could we not have a closed eye, or a different colour say red ?
> I feel 'something' to click on is better than a space, I don't
> really mind what,

I thought about that a bit... But I noticed it seemed to be most common for other programs that used an eye icon to have the eye just be missing to indicate hidden, for example that is how Photoshop works.

There's also kind of an advantage to it being blank, that it will probably stick out in contrast in a line of differing states the most. A closed eye is probably going to be too similar in shape and make it a bit harder to differentiate at a glance.

I guess I could try to make a really faint eye, but that may have a kind of look of being something that was disabled.

I think there will be some kind of highlight when you mouse over that area which may help.... I guess we'll see when it is actually going how this works out.

- Michael