Can't change black SVG's to white SVG's (get png's instead)

[H5T7P4]

Hello,

I have black SVG's that I want to convert to white SVG's.

The only action I take is "Replace color Red:0 Green:0 Blue:0 Tolerance:85 -> Red:255 Green:255 Blue:255".

At Ouput I set "Format: Same as original". (It's not poosible to chosse SVG there, but I think "Same as Original" means SVG
because the original is SVG.)

But instead to get SVG's where black (and dark colors) are changed to white I get PNG's where black and dark has changed to white.

So why get I PNG's instead of SVG's and how can I get SVG's?

[xnview]

SVG output is not supported

[H5T7P4]

SVG output is not supported

Ok, thank you.