shader designer Uniform Wizard - add uniform error

Gurus,

I’m trying to use shader designer, but when I try to add an uniform variable, type: float[3], value: 0.3
0.2
0.2 , widget: color slider, it prompt me ‘there wasn’t enought values’, I really don’t know why it’s wrong.

Thanks for any feedback!

Rosone

got the reason: 0.3
0.2
0.2 ->0.3 , 0.2 , 0.2