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Editorial Team
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Asked: 2026-05-21T10:19:16+00:00

Situation: I’m working with Wicket’s IndicatingAjaxButton . I have the button set up on

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Situation: I’m working with Wicket’s IndicatingAjaxButton. I have the button set up on a page with black background. When the user pushes the button, the button’s activity indicator goes off and spins until the system is ready to move on.

Problem: Because of the black background, the indicator looks bad. Since part of the indicator is animated in black, some of the details are lost using the indicator on a black background.

Question: Is it possible in Wicket to change the color of the IndicatingX [Button, Link, etc.], or do I have to design my page in a new way?

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1 Answer

  1. Editorial Team

    This is not possible. Well, not programmatically.

    Wicket’s activity indicator/throbber/spinner is actually nothing more than an animated GIF. It’s located at

    [your version of Wicket here]\wicket-src\wicket\src\main\java\org\apache\wicket\ajax\indicator.gif

    and referenced in AbstractDefaultAjaxBehavior.

    To change the colors, you could create your own animated GIF of the same size and overwrite the one that’s included in the default distribution.

    EDIT:
    Okay, after writing that I thought “there must be free icons available” and came up with this through Google Image Search:

    http://blogs.msdn.com/blogfiles/gduthie/WindowsLiveWriter/Needananimatedloadingicon_B811/ajax-loader_2.gif

    I think it’s free and unrestricted to use, but I didn’t check too carefully. You should check for yourself if you’re using it for anything more than a personal toy/sample app.

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