How do I change the color of the selected white rectangle to transparent?

[Chris P. Bacon]

So far as I know, that rectangle is the AI document, is that right?

I have a white SVG rectangle with brushed edges on it.

When I see this in Adobe Bridge file manager, I can only see a white rectangle, and that's not good because I must see that it has a transparent background.

Because when I place this into InDesign, for example, the background IS transparent.

And as you can see for the rectangle is set "no color", so I don't know why does it show as white in Illustrator and in Adobe Bridge, but not in InDesign? 

[Ton Frederiks]

Did you check View > Show Transparency Grid?

[Chris P. Bacon]

Yes I did.

I bought these shapes with brushed edges as EPS, those icons with transparency that you see in Bridge on the screenshot, they are EPS.

What I did is that I opened the file in Illustrator, and I changed their fill color to white.

And I saved it as Illustrator files, and Illustrator appended the "converted" string to their file name.

Even though the new AI files are still transparent, I am unable to see the transparency in Adobe Bridge, not in the icons nor in the preview, as you can see it on the screenshot.

Any help would be much welcome.

[Ton Frederiks]

Did you check the Preferences in Bridge for Thumbnails?

[Chris P. Bacon]

These are my settings.

[Chris P. Bacon]

"Show transparency" is ticked, yet it doesn't show for my AI files, but in the original EPS it shows.

[Chris P. Bacon]

Now it shows.

No idea what happened.

I changed the setting to keep embedded color profiles and I regenerated my thumbnails.

[Ton Frederiks]

I have a similar experience with Bridge Thumbnails, some Illustrator files just don't show transparency whatever I try.

[Chris P. Bacon]

It seems that thumbnail and preview cache transparency will not get updated after conversion.

If you enable keep color profiles like I did and regenerate the cache, you still cannot see the transparency?

[Ton Frederiks]

That is all enabled and regenerated.