Setting column backgroung to transparent in a straight table

[#1]

I have an issue with straight table column where I am applying argb(0,0,0,0) to set tranparent background:

And getting the opposite as a result:

I suppose there is something to do with cell borders color which result in such behaviour. Is there any way I can set both background and cell borders to transparent? Thanks in advance.

[#2 · Accepted solution]

Hi Badlam, I think that is impossible, but you can do it using the same color like background. I've attached an example file. I hope it helps you. Regards.