Assign Apps Toolbar Icon

2025 8 5
1 个回答
更新时间：2026 3 2
18 次查看（30 天）

1 个投票

Hi,
How can the icon tha appears when installing a custom app (ARES) be modified? I have tried specifying the file as thumbnail, in the UIFigure properties, and in the project toolbox. The icon appears as the window icon when running the app and in the adds on but not in the app toolbar. (R2025a)

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Vanita
Vanita 2025-8-19
编辑：Vanita 2025-8-19
I faced the same issue in R2025a — the icon shows in the window but not in the App Toolbar. I suggest contacting MathWorks Technical Support for further help.
https://supportcases.mathworks.com/mwsupport/s/casetypeselection?language=en_US&c__caseParameter=productusage&s_tid=srlp_product

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回答（1 个）

Jacob Mathew
Jacob Mathew 2025-8-8

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Hey @Alex Santiago Vargas,
Take a look at the following MATLAB Answer where a MathWorks Staff goes into detail on how to package the app with the icon:
https://www.mathworks.com/matlabcentral/answers/2178657-app-installed-by-mlappinstaller-doesn-t-show-app-icon-in-matlab-app-bar?s_tid=answers_rc1-3_p3_Topic

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I tried specifying the icon here but had no success. The app was first created in a previous version of MATLAB (I believe R2024a) with the interface you mentioned, and it worked. I've manually created the folder containing the resources folder with the corresponding icons but it did not help. Is there a way to clear up the icon here to start the process again?
Arnold
Arnold 2026-3-2，8:36
Hi Alex,
I have the same issues, did you solved the problem and can you share the solution.
Greetings,
Arnold
Alex Santiago Vargas
Alex Santiago Vargas 2026-3-2，12:39
Arnold, no I was not able to resolve it. I am guessing it is a bug that comes from the UI changes going on but haven't tried to generate the icon again since then.

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