Info icon in PDF export not suitable for dark themes

Summary:

The info icon in the PDF export dialog (and the two related dialogs for ps) should use a symbolic icon, not a blue one.

Steps to reproduce:

  • open Inkscape
  • File > Save as ... > PDF

What happened?

grafik

What should have happened?

The icon should have a better contrast with the dark theme. Imagine my theme being blue...

Version info

Inkscape 1.3-alpha (381588110e, 2023-05-22)

    GLib version:     2.72.4
    GTK version:      3.24.33
    glibmm version:   2.66.2
    gtkmm version:    3.24.5
    libxml2 version:  2.9.13
    libxslt version:  1.1.34
    Cairo version:    1.16.0
    Pango version:    1.50.6
    HarfBuzz version: 2.7.4

    OS version:       Linux Mint 21.1