# UXP UI backend update in Photoshop Beta

**URL:** <https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910>\
**Category:** Photoshop\
**Created:** [May 12, 2026, 8:54pm UTC](https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910 "2026-05-12T20:54:53Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![samgannaway](https://avatars.discourse-cdn.com/v4/letter/s/898d66/32.png) [@samgannaway](https://forums.creativeclouddeveloper.com/u/samgannaway)\
**Post date:** [May 12, 2026, 8:54pm UTC](https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910/1 "2026-05-12T20:54:53Z")

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And now a message from one of our infrastructure teams:

* * *

Hi Everyone,  
We are pleased to share that the Photoshop’s backend infrastructure for UXP plugins has been updated and is now available in the Photoshop Beta build: 27.8 20260510.m.3537

This update ensures a more consistent look and feel for Photoshop UXP plugins across Creative Cloud applications and lays the foundation for future UI enhancements and shared capabilities.

**What this means for UXP plugin developers?**

- For the UXP plugins not using Spectrum components, this update would bring your plugin’s UI to a lot closer to a Spectrum based UXP plugin.
- For the UXP plugins using Spectrum components, this change is largely **not expected to impact UI look and feel** , except for changes in text font size and placement of text with in the text area.

Before this change Ps was ignoring the font size of the text field (sp-textfield) passed down from the plugin and always used a fixed size to render the text. With this change, Ps will handle the font size passed from plugins and use that. If the font size inside text fields look different in latest Ps Beta, please try updating the font size in your UXP plugin code.

Our bundled UXP plugins provided a good testbed for the change, but we acknowledge that it is not exhaustive. Please test your UXP plugins in the latest Photoshop Beta and share feedback here if you notice any visual changes or functional issues. Your input is important and will help us ensure a smooth transition as we progress toward a full release. Please share your feedback, questions or any issues you encounter by replying to this thread.

Thanks,  
Photoshop Team

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**Author:** ![JasonM](https://avatars.discourse-cdn.com/v4/letter/j/3be4f8/32.png) [@JasonM](https://forums.creativeclouddeveloper.com/u/JasonM)\
**Post date:** [May 13, 2026, 2:13am UTC](https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910/2 "2026-05-13T02:13:42Z")

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Developer, check your apps…these changes cause several formatting and some functionality issues that have been reported but mostly ignored.

Most of it is annoying formatting changes that may make your plugins look bad, but other users have reported some broken functionality.

 ![8upvqkaxzwgr](https://us1.discourse-cdn.com/flex015/uploads/xdplugins/original/2X/8/88ab07fb1a02de9e556d2a5e533fc46848b1c735.jpeg)

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**Author:** ![Jarda](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.creativeclouddeveloper.com/jarda/32/1909_2.png) [@Jarda](https://forums.creativeclouddeveloper.com/u/Jarda)\
**Post date:** [May 14, 2026, 1:53pm UTC](https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910/3 "2026-05-14T13:53:57Z")

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I have virtual scrolling with 269 text fields and when I switch to Drover performance are a bit worse and rendering is more lagging. Like the input wrapper scrools with HTML but the interactive UI part of the same UI lags behind on Windows.

And since you are updating scrollbar. Can I please please have scrollbar in textarea on Windows?

 ![image](https://us1.discourse-cdn.com/flex015/uploads/xdplugins/original/2X/0/0d77ef3cc06e5944521ec1717bb79508d7d19a59.png)

One thing I noticed.

Drover:  
 ![image](https://us1.discourse-cdn.com/flex015/uploads/xdplugins/original/2X/1/160bc7c2ce2ade9140e3ec828c00da21bf171e3e.png)

Before:  
 ![image](https://us1.discourse-cdn.com/flex015/uploads/xdplugins/original/2X/4/44f0a55b2b64630fb89757a4f59c5fee79188c11.png)

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**Author:** ![JasonM](https://avatars.discourse-cdn.com/v4/letter/j/3be4f8/32.png) [@JasonM](https://forums.creativeclouddeveloper.com/u/JasonM)\
**Post date:** [May 14, 2026, 11:21pm UTC](https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910/4 "2026-05-14T23:21:53Z")

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With Drover It seems like sp-textfields with type=“number” now round the number values by default???

So now any plugin that used to be able to have a value like 8.5 will be forced to round to 9…which you know…BREAKS A TON OF THINGS.

I can add a step=“0.001” to allow values like 8.5 but then it always shows 8.500

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**Author:** ![JasonM](https://avatars.discourse-cdn.com/v4/letter/j/3be4f8/32.png) [@JasonM](https://forums.creativeclouddeveloper.com/u/JasonM)\
**Post date:** [May 15, 2026, 12:09am UTC](https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910/5 "2026-05-15T00:09:28Z")

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@samgannaway  
Can you tell us how to get the sp-textfield values to be cenetered vertically with these new changes instead of looking bad and uncentered?

Can you tell us how to deal with the fact that sp-textfiled type=“number” values are now forced to round to the nearest whole number and every plugin that relies on that to be able to have a decimal is now not working correctly?

If only several users had pointed out in the prerelease forums that Drover was causing these problems and that drover was not yet ready to be pushed into the public beta…oh wait.

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**Author:** ![SandeepSharma](https://avatars.discourse-cdn.com/v4/letter/s/e99b99/32.png) [@SandeepSharma](https://forums.creativeclouddeveloper.com/u/SandeepSharma)\
**Post date:** [May 15, 2026, 4:23pm UTC](https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910/6 "2026-05-15T16:23:46Z")

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Hi @JasonM,

Thanks, for sharing this issue. We are looking into the reported issues and will get back if need any further information. Thanks,

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**Author:** ![SandeepSharma](https://avatars.discourse-cdn.com/v4/letter/s/e99b99/32.png) [@SandeepSharma](https://forums.creativeclouddeveloper.com/u/SandeepSharma)\
**Post date:** [May 15, 2026, 4:26pm UTC](https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910/7 "2026-05-15T16:26:14Z")

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Hello @Jarda ,

Could you please share the version number of the Kitchen Sink plugin or sample code for us to reproduce some of these issues? Thanks

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<div class="post-metadata">

**Author:** ![Jarda](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.creativeclouddeveloper.com/jarda/32/1909_2.png) [@Jarda](https://forums.creativeclouddeveloper.com/u/Jarda)\
**Post date:** [May 15, 2026, 4:41pm UTC](https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910/8 "2026-05-15T16:41:16Z")

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Sure

```auto
<sp-textarea></sp-textarea>

```

And then just type and hit enter until it no longer fits. And make sure you are on Windows 11

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<div class="post-metadata">

**Author:** ![JasonM](https://avatars.discourse-cdn.com/v4/letter/j/3be4f8/32.png) [@JasonM](https://forums.creativeclouddeveloper.com/u/JasonM)\
**Post date:** [May 15, 2026, 9:24pm UTC](https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910/9 "2026-05-15T21:24:44Z")

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Tried adding the size values as directed in the kitchen sink.  
`<sp-textfield type="number" size="xl" placeholder="Pick a Number"></sp-textfield>`

 ![sizes1b](https://us1.discourse-cdn.com/flex015/uploads/xdplugins/original/2X/9/9d28bbbde43f822705d58ad4a659cc1efca7e23a.jpeg)

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<div class="post-metadata">

**Author:** ![Jarda](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.creativeclouddeveloper.com/jarda/32/1909_2.png) [@Jarda](https://forums.creativeclouddeveloper.com/u/Jarda)\
**Post date:** [May 18, 2026, 9:13am UTC](https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910/10 "2026-05-18T09:13:39Z")

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How does DroverUXP relate to Spectrum SWC?

Is it a replacement? Is it an addition to SWC? [GitHub - adobe/swc-uxp-wrappers: SWC UXP wrappers · GitHub](https://github.com/adobe/swc-uxp-wrappers/tree/main?tab=readme-ov-file#spectrum-web-components-uxp-wrappers)

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<div class="post-metadata">

**Author:** ![JasonM](https://avatars.discourse-cdn.com/v4/letter/j/3be4f8/32.png) [@JasonM](https://forums.creativeclouddeveloper.com/u/JasonM)\
**Post date:** [May 19, 2026, 5:46pm UTC](https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910/11 "2026-05-19T17:46:27Z")

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@samgannaway it would be really appreciated if you or someone at Adobe could offer some help on this. Is there somewhere else I should be posting? The pre-release forum also does not seem to be getting me any helpful replies.  
I am getting a bit desperate now that Drover is in the public beta and these issues are now more prevalent. It seems like Adobe is moving forward with Drover despite the issues for developers, so we could use some help on how to mitigate the issues for Adobe users.

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**Author:** ![AnthonyK](https://avatars.discourse-cdn.com/v4/letter/a/85f322/32.png) [@AnthonyK](https://forums.creativeclouddeveloper.com/u/AnthonyK)\
**Post date:** [May 19, 2026, 10:12pm UTC](https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910/12 "2026-05-19T22:12:18Z")

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Border styling no longer provides solid borders They’re now a bit fuzzy compared to before Drover as shown in the enlargement below.

 ![border-ps-2026-vs-ps-beta](https://us1.discourse-cdn.com/flex015/uploads/xdplugins/original/2X/2/2fa04f1ae2d6a469e9cee4d2a26a64af7e1f5f86.png)

This is just

`border: 2px solid #ffffff’`

in the HTML, but it renders differently with drover.

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<div class="post-metadata">

**Author:** ![Jarda](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.creativeclouddeveloper.com/jarda/32/1909_2.png) [@Jarda](https://forums.creativeclouddeveloper.com/u/Jarda)\
**Post date:** [May 20, 2026, 6:14am UTC](https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910/13 "2026-05-20T06:14:14Z")

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Do you have the size of the box in pixels? Are those integers or decimals?

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**Author:** ![bany0](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.creativeclouddeveloper.com/bany0/32/4714_2.png) [@bany0](https://forums.creativeclouddeveloper.com/u/bany0)\
**Post date:** [May 20, 2026, 8:53am UTC](https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910/14 "2026-05-20T08:53:53Z")

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![image](https://us1.discourse-cdn.com/flex015/uploads/xdplugins/original/2X/b/b29dd6bbceb0dda841db099cf8e790547197e4e6.jpeg)

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**Author:** ![Dirk](https://avatars.discourse-cdn.com/v4/letter/d/87869e/32.png) [@Dirk](https://forums.creativeclouddeveloper.com/u/Dirk)\
**Post date:** [May 20, 2026, 10:25am UTC](https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910/15 "2026-05-20T10:25:21Z")

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Also watch out for UI Scaling side effects.

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**Author:** ![AnthonyK](https://avatars.discourse-cdn.com/v4/letter/a/85f322/32.png) [@AnthonyK](https://forums.creativeclouddeveloper.com/u/AnthonyK)\
**Post date:** [May 20, 2026, 1:19pm UTC](https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910/16 "2026-05-20T13:19:33Z")

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@bany0 --I see on some of your sliders that the handle’s bottom pixel is missing. The handle isn’t uniformly round. It’s a bit flat on the bottom. I’m seeing that too on my. In fact, on my plugins, the entire slider seems to have been lowered one-pixel relative to what they were before Drover implementation. Perhaps this is why the bottom pixel is now truncated.

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**Author:** ![Erin\_Finnegan](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.creativeclouddeveloper.com/erin_finnegan/32/100_2.png) [@Erin\_Finnegan](https://forums.creativeclouddeveloper.com/u/Erin_Finnegan)\
**Post date:** [May 21, 2026, 4:57pm UTC](https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910/17 "2026-05-21T16:57:48Z")

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> [@JasonM](#):
>
> [samgannaway](https://forums.creativeclouddeveloper.com/u/samgannaway) it would be really appreciated if you or someone at Adobe could offer some help on this. Is there somewhere else I should be posting? The pre-release forum also does not seem to be getting me any helpful replies

Hi Jason,

This thread is getting read by people at Adobe, and I’m told fixes are underway. I’m trying to get some clarity on the specifics.

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<div class="post-metadata">

**Author:** ![JasonM](https://avatars.discourse-cdn.com/v4/letter/j/3be4f8/32.png) [@JasonM](https://forums.creativeclouddeveloper.com/u/JasonM)\
**Post date:** [May 22, 2026, 2:36am UTC](https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910/18 "2026-05-22T02:36:24Z")

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Thank you Erin for responding and I look forward to the follow up

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<div class="post-metadata">

**Author:** ![Erin\_Finnegan](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.creativeclouddeveloper.com/erin_finnegan/32/100_2.png) [@Erin\_Finnegan](https://forums.creativeclouddeveloper.com/u/Erin_Finnegan)\
**Post date:** [May 26, 2026, 3:07pm UTC](https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910/19 "2026-05-26T15:07:08Z")

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Hello all,

I got an update from the Photoshop team.

> Beta build **27.8**  **20260525.m.3553** is now available to customers with Drover UXP bug fixes:
> 
> - [Windows] Scrollbar in text area
> 
> - Rounding issues in sp-textfields

I also got specific notes on each item from the thread above:

| Reporter | Link | Description | Comment |
| --- | --- | --- | --- |
| Jason M | [https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910/2](https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910/2) | Formatting issue in text field | We in the process of confirming this. |
| Jarda | [https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910/3](https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910/3) | Slight perf degradation in text scroll | Under investigation |
| Jarda | [https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910/3](https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910/3) | Scrollbar in textarea on Windows | Done. |
| Jason M | [https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910/4](https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910/4) | Rounding issues in sp-textfields with type=“number” | Done. |
| Jason M | [https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910/9](https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910/9) | Text truncation on setting XL size in text field | Under investigation |
| AnthonyK | [https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910/12](https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910/12) | Grey outline around solid borders | Under investigation |

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<div class="post-metadata">

**Author:** ![JasonM](https://avatars.discourse-cdn.com/v4/letter/j/3be4f8/32.png) [@JasonM](https://forums.creativeclouddeveloper.com/u/JasonM)\
**Post date:** [May 26, 2026, 5:06pm UTC](https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910/21 "2026-05-26T17:06:08Z")

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Rounding issues in sp-textfields with type=“number” is **NOT** fixed in **27.8**  **20260525.m.3553**

[Next page](https://forums.creativeclouddeveloper.com/t/uxp-ui-backend-update-in-photoshop-beta/11910.md?page=2)
