topic Re: Pro Button set as large appears small on ribbon in ArcGIS Pro SDK Questions

Pro Button set as large appears small on ribbon

Vidar — Thu, 29 Jan 2026 10:35:22 GMT

Hi,

Something weird is happening to my add-in. I am writing against 3.2 at the moment - but it's the last release against this version.

When users install my add-in the Connect icon I have displays as small (usually on a 3.5 install) - it doesn't matter what I do - it seems to just want to be small - other icons however are displayed at the right size. I even made an add-in just with one button and this image, and the same thing happened so I know I have isolated the problem.

Could it be something to do with header information in the binary of the image??

I have made sure the dpi is 96dpi for both large and small versions of this image. The daml shows this:

<groups> <group id="FooProTest_Group1" keytip="X" caption="Group 1" appearsOnAddInTab="true"> <button refID="FooProTest_ConnectButton" size="large" /> </group> </groups> <controls> <button id="FooProTest_ConnectButton" keytip="Z" caption="ConnectButton" className="ConnectButton" loadOnClick="true" smallImage="Images/CloudError16.png" largeImage="Images/CloudError32.png"> <tooltip heading="Tooltip Heading">Tooltip text<disabledText /></tooltip> </button>

I have the icons properties as:

Build Action -> Content
Copy to Output Directory -> Do not copy

Here are the screenshots - the one with the large icon is on my dev machine

On other users machines and installed as an add-in:

If anyone has any ideas what might be happening - I would be grateful.

Re: Pro Button set as large appears small on ribbon

GKmieliauskas — Thu, 29 Jan 2026 14:04:35 GMT

Hi,

Try to check "Build Action" of both images: CloudError16.png and CloudError32.png. Maybe build action for CloudError32.png is wrong.

Re: Pro Button set as large appears small on ribbon

Vidar — Thu, 29 Jan 2026 14:18:19 GMT

Well, maybe but I doubt it as I am just following the ESRI documentation. However, I have deleted the 16x16 pixel version of the icon - and removed "smallImage" from the config.daml and it still scales the image to a small one. So I don't know what the heck is going on now.

Re: Pro Button set as large appears small on ribbon

GKmieliauskas — Thu, 29 Jan 2026 15:03:38 GMT

I think issue isn't with small image properties. It could be with large image properties

Re: Pro Button set as large appears small on ribbon

RichardDaniels — Thu, 29 Jan 2026 16:20:36 GMT

In regards to your DAML, try \ instead of / for the paths. You have:

In all my successful builds I've been using:

also ensure the CloudError32.png and CloudError16.png build actions are identical; If you click on the image name in Solution Explorer, the advanced properties should be set to AddInContent and Do not copy. Ensure the Misc area of properties shows the correct full path to the image.