bigger preview hack ?

[Ofnuts]

Without a list it's hard for me to guess. Installed Gimp 2.8.22 for Windows in a pristine VM, only one "gtkrc" file in my user directory, coincidentally in the Gimp profile directory. It reads:

Code:

# pixmap_path "<dir 1>:<dir 2>:<dir 3>:..."
#
# include "rc-file"
#
# style <name> [= <name>]
# {
#   <option>
# }
#
# widget <widget_set>       style <style_name>
# class  <widget_class_set> style <style_name>
#
# You can add your own GIMP-specific GTK styles here.


#
# Adjust the size of previews in plug-in dialogs:
#
style "gimp-large-preview"
{
  GimpPreview::size = 256
}

# class "GimpPreview" style "gimp-large-preview"