The colour of the ball

Why would one want orange balls?
They are,at least for me,simply too dark.

Everybody misses the orange balls. The white ball is invisible when it's out of the table.

Which company will be the first to make orange balls?

Interesting to hear.
Here noone uses orange balls since they are often invisible even at the table unless the surroundings are very light and bright.
I used to wear thick glasses two years ago,and I was completely unable to detect the darker orange ball at the table.
I cannot speak for others,but it seems logical to me.
Unless someone creates some orange balls with different shade of orange I have never seen.

Though,I wonder whether any preparations for DualColor balls are made.
They seem to be the most effective idea.

We use orange balls at the office because the walls are white (and close) and white balls 'disappear' into the background. I use them at home for my practice balls too, for a similar reason.  The table at work is black, the one at home green so either colour works fine over the tables.  The club tables are blue and the background (walls) are so far away it wouldn't matter what balls we used but we use white balls. There is definitely a time and place for each.

DK, I'm not sure dual colour balls will be very effective.  I have some at home for service spin practice and occasionally we try to play with them.  They are actually very difficult to track, especially in terms of their 4-dimensional position -  you can see the ball but depth perception and therefore contact timing is very tricky.

We use white balls almost everywhere due to most halls having very dark conditions,some halls are in enormously old buildings.
Most walls are black/brown.

I have no persona lexperience with dualcolors,but I would like to try,due to rotation reading

In my opinion, orange balls could come back into local league level but not pro

Since summer of 2019 there are plastic orange balls. At last!

We have been playing with them in a local league. All the players of all clubs say that orange balls ara much better than white, by far.

So far, there are these ones: Tibhar, Nittaku, DHS, and Double fish. In my opinion, Tibhar is the best.

We hope more companies will soon join them.

In my opinion I think white balls look more professional than orange. Orange seems a bit cheap and unprofessional 

Well,Josep,I would not say "everybody"
The playing conditions are countless.
In our areas,as I said before,the white balls are mostly contrasting against any surroundings,thus they are well visible.
If anyone plays in white-walled area,then the orange balls could be better (in terms of visibility).
To be honest,I have never heard about higher quality orange balls.
Noone uses them here,for both abovementioned reasons.
Another part of world can be different of course.
Matter of taste