transparant picture in illustrator, not 100 % transparant

[Egbert32897310n33j]

Why ?

[Ton Frederiks]

Hard to tell without an example and some detailed information about the image.

[Jacob Bugge]

Egbert,

I wonder whether your question arises from the two possible and very different meanings of the term transparent, the literal one being equivalent to invisible (0% Opacity) as in untinted glass without reflexion, and the often used descriptive one being partially see through (less than 100% Opacity) as in a faded appearance in front of something else that shows through faded right behind it.

[Egbert32897310n33j]

De document has a red backgroud, part of the document is covered by transparant picture, but transparent red is darker red then the original background

[Ton Frederiks]

Your transparent picture is not fully transparent (183 RGB ), that is why it darkens the red.

[Ton Frederiks]

But there is something strange with that png smart object, I cannot pick up the gray background.

The only way I could fix it was to open the smart object,  flatten transparency, make it a layer, select the gray (select similar), delete the gray, save the smart object and set it to darken in the red file.

Does it need to be 16 bit?

[Egbert32897310n33j]

Hereby a PSD file

[Ton Frederiks]

Where was this created? Artifex software  as ICC profile...

[Egbert32897310n33j]

Thanks ! I am beginner with Adobe Photoshop / Illustrator. I think this solution "gaat boven mijn pet" if you understand what I mean. I try ....

[Ton Frederiks]

Probeer een nieuwe versie van de schaakstukken te krijgen/maken zonder halftransparante achtergrond.

[Monika Gause]

So basically this?

https://creativepro.com/eliminating-ydb-yucky-discolored-box-syndrome/