Customize image dir for tool-bar?

[leon <sdl.web@gmail.com>]

Dear all,

I'm using emacscvs 22.0.50.1 with gtk2 gui. However the default toolbar
icons won't change as the icon theme changes. So I'm thinking providing
another set of icons in a different directory. Any idea how to tell
emacs to look for images in the new directory?

I have tried to set `image-load-path' with no luck.

Thank you for your help.
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