# UI Toolkit **URL:** https://discussions.unity.com/c/ui/ui-toolkit/201.md [Latest](https://discussions.unity.com/latest.md) · [Categories](https://discussions.unity.com/categories.md) · [Tags](https://discussions.unity.com/tags.md) --- ## [About the UI Toolkit category](https://discussions.unity.com/t/about-the-ui-toolkit-category/1720689)
**Author:** [@osmangormus](https://discussions.unity.com/u/osmangormus)\ **Replies:** 0\ **Last updated:** [May 21, 2026, 11:26am UTC](https://discussions.unity.com/t/about-the-ui-toolkit-category/1720689 "2026-05-21T11:26:56Z")
Discuss building UXML-driven interfaces with USS styling and flexbox. Covers UI Builder workflows and scalable screen design. --- ## [UI Toolkit Update - Q3 2022](https://discussions.unity.com/t/ui-toolkit-update-q3-2022/892659)
**Author:** [@benoitd\_unity](https://discussions.unity.com/u/benoitd_unity)\ **Replies:** 90\ **Last updated:** [July 4, 2024, 1:30pm UTC](https://discussions.unity.com/t/ui-toolkit-update-q3-2022/892659 "2024-07-04T13:30:44Z")
Hi folks, It has been a while since we reached out with an updated message about a general overview of the UI Toolkit’s direction. The landscape of UI systems at Unity First of all, we want to reiterate our commitment… --- ## [Introducing the Vector API in Unity 2022.1](https://discussions.unity.com/t/introducing-the-vector-api-in-unity-2022-1/864911)
**Author:** [@SimonDufour](https://discussions.unity.com/u/SimonDufour)\ **Replies:** 135\ **Last updated:** [July 5, 2025, 6:13pm UTC](https://discussions.unity.com/t/introducing-the-vector-api-in-unity-2022-1/864911 "2025-07-05T18:13:08Z")
This will be a brief overview of the new UI Toolkit Vector API that recently landed in Unity 2022.1 First, a bit of (mesh generation) context: UI Toolkit already provides the Mesh API which allows drawing custom conten… --- ## [Share your UI Toolkit projects](https://discussions.unity.com/t/share-your-ui-toolkit-projects/810814)
**Author:** [@antoine-unity](https://discussions.unity.com/u/antoine-unity)\ **Replies:** 117\ **Last updated:** [April 6, 2026, 11:56pm UTC](https://discussions.unity.com/t/share-your-ui-toolkit-projects/810814 "2026-04-06T23:56:02Z")
Hello, We would like to invite you to share the projects with the community. Which kind of games, tools or application have you built with UI Toolkit ? Are there any screen shots or videos you can show us ? The devel… --- ## [Hows Box Shadow Different than Filter DropShadow in performance?](https://discussions.unity.com/t/hows-box-shadow-different-than-filter-dropshadow-in-performance/1741761)
**Author:** [@jGate99](https://discussions.unity.com/u/jGate99)\ **Replies:** 4\ **Last updated:** [November 13, 2026, 12:22am UTC](https://discussions.unity.com/t/hows-box-shadow-different-than-filter-dropshadow-in-performance/1741761 "2026-11-13T00:22:11Z")
Hi there, Wanted to know if BoxShadow has same performance issues as DropShadow Filter or not? Thanks --- ## [Improve Color Picker Already!](https://discussions.unity.com/t/improve-color-picker-already/1738850)
**Author:** [@Player7](https://discussions.unity.com/u/Player7)\ **Replies:** 3\ **Last updated:** [November 12, 2026, 2:35pm UTC](https://discussions.unity.com/t/improve-color-picker-already/1738850 "2026-11-12T14:35:33Z")
Improve the color picker to include rgba output that can be easily copied, I’d rather work with that in .uss style sheets than #hexcodes and on the topic also make sure hexcodes includes the alpha, it’s been left at 6dig… --- ## [Drop Shadow filter in 6.6 breaks when hiding a menu from its own button](https://discussions.unity.com/t/drop-shadow-filter-in-6-6-breaks-when-hiding-a-menu-from-its-own-button/1737646)
**Author:** [@auriferrous](https://discussions.unity.com/u/auriferrous)\ **Replies:** 2\ **Last updated:** [November 10, 2026, 8:46pm UTC](https://discussions.unity.com/t/drop-shadow-filter-in-6-6-breaks-when-hiding-a-menu-from-its-own-button/1737646 "2026-11-10T20:46:05Z")
I’ve been running into what I think is a bug with the filter: drop-shadow Basically, hiding an element that has a filter (using display:none), while a child button is hovered or pressed and has a scale change in its sta… --- ## [UITK style selection broken in 6.6?](https://discussions.unity.com/t/uitk-style-selection-broken-in-6-6/1741395)
**Author:** [@Tom163](https://discussions.unity.com/u/Tom163)\ **Replies:** 2\ **Last updated:** [November 10, 2026, 6:54pm UTC](https://discussions.unity.com/t/uitk-style-selection-broken-in-6-6/1741395 "2026-11-10T18:54:45Z")
When selecting a style in the UI Builder, the inspector doesn’t show anything anymore. It works on UXML elements, but in the USS pane, nothing. It just keeps saying “select and element … to show its properties”. This us… --- ## [Is there a way to permanently select a specific tab in a TabView while editing it in UI Builder?](https://discussions.unity.com/t/is-there-a-way-to-permanently-select-a-specific-tab-in-a-tabview-while-editing-it-in-ui-builder/1732469)
**Author:** [@tomashined](https://discussions.unity.com/u/tomashined)\ **Replies:** 2\ **Last updated:** [November 5, 2026, 8:33pm UTC](https://discussions.unity.com/t/is-there-a-way-to-permanently-select-a-specific-tab-in-a-tabview-while-editing-it-in-ui-builder/1732469 "2026-11-05T20:33:42Z")
Right now, UI Builder always opens the first tab by default. Even if I switch to another tab using Preview, it resets back to the first tab whenever I save the UXML. This makes it inconvenient to populate the content of … --- ## [Adding space at end of Label, or change UXML attribute at runtime](https://discussions.unity.com/t/adding-space-at-end-of-label-or-change-uxml-attribute-at-runtime/1678302)
**Author:** [@Kaijin57](https://discussions.unity.com/u/Kaijin57)\ **Replies:** 1\ **Last updated:** [November 5, 2026, 4:03pm UTC](https://discussions.unity.com/t/adding-space-at-end-of-label-or-change-uxml-attribute-at-runtime/1678302 "2026-11-05T16:03:42Z")
I made a script to “typewriter” animate words of a paragraph into a dialogue box. I’m breaking the paragraph string by spaces " ", and adding a delay depending on the length of the word & punctuation. Since I’m dividing … --- ## [UI Toolkit Progress Bar styling is giving me lots of difficulty](https://discussions.unity.com/t/ui-toolkit-progress-bar-styling-is-giving-me-lots-of-difficulty/1740309)
**Author:** [@Spamster3121](https://discussions.unity.com/u/Spamster3121)\ **Replies:** 2\ **Last updated:** [November 1, 2026, 2:44pm UTC](https://discussions.unity.com/t/ui-toolkit-progress-bar-styling-is-giving-me-lots-of-difficulty/1740309 "2026-11-01T14:44:58Z")
Most of UI Toolkit is working rather well for me, but the one thing I just cannot seem to wrap my head around is how to style the progress bar element. I run into so many issues with the different sub elements, the progr… --- ## [TemplateContainer breaking Layouts](https://discussions.unity.com/t/templatecontainer-breaking-layouts/943309)
**Author:** [@Noblauch](https://discussions.unity.com/u/Noblauch)\ **Replies:** 4\ **Last updated:** [October 30, 2026, 12:40am UTC](https://discussions.unity.com/t/templatecontainer-breaking-layouts/943309 "2026-10-30T00:40:50Z")
Hi, I’m just getting started with UI Toolkit and I found one of the first major annoyances you stumble across are TemplateContainers that are getting instantiated as parents against my will and breaking my layouts. I’ve… --- ## [BaseField\ for the Editor?](https://discussions.unity.com/t/basefield-dictionary-for-the-editor/1740596)
**Author:** [@Joey35233](https://discussions.unity.com/u/Joey35233)\ **Replies:** 0\ **Last updated:** [October 29, 2026, 5:21am UTC](https://discussions.unity.com/t/basefield-dictionary-for-the-editor/1740596 "2026-10-29T05:21:58Z")
I am working on a project where use our own editor fields instead of PropertyFields. It’s great to see that Dictionaries can now be serialized but I’m wondering if there’s some way with the public API to create a field e… --- ## [Particle Effects and UI Toolkit](https://discussions.unity.com/t/particle-effects-and-ui-toolkit/810985)
**Author:** [@b4gn0](https://discussions.unity.com/u/b4gn0)\ **Replies:** 6\ **Last updated:** [October 24, 2026, 3:31pm UTC](https://discussions.unity.com/t/particle-effects-and-ui-toolkit/810985 "2026-10-24T15:31:52Z")
Hello, we are in the process of polishing our UI a little, and we would like to add some visual effects as feedback for the player when certain actions are triggered. The only process we could find to add something anim… --- ## [UI Toolkit ParticleSystem is here](https://discussions.unity.com/t/ui-toolkit-particlesystem-is-here/1740273)
**Author:** [@chrome-alex](https://discussions.unity.com/u/chrome-alex)\ **Replies:** 0\ **Last updated:** [October 23, 2026, 5:05pm UTC](https://discussions.unity.com/t/ui-toolkit-particlesystem-is-here/1740273 "2026-10-23T17:05:07Z")
MIT open-source --- ## [PanelRenderer: Evolution of the UIDocument Component in 6.5+](https://discussions.unity.com/t/panelrenderer-evolution-of-the-uidocument-component-in-6-5/1715909)
**Author:** [@uDamian](https://discussions.unity.com/u/uDamian)\ **Replies:** 141\ **Last updated:** [October 20, 2026, 2:50pm UTC](https://discussions.unity.com/t/panelrenderer-evolution-of-the-uidocument-component-in-6-5/1715909 "2026-10-20T14:50:05Z")
What is the new PanelRenderer Component PanelRenderer is a new component that replaces UIDocument as the way to add UI Toolkit content to a scene. It lives under Component \> UI Toolkit \> Panel Renderer. UIDocument P… --- ## [AppUI: SwipeView conflicts with nested interactive controls](https://discussions.unity.com/t/appui-swipeview-conflicts-with-nested-interactive-controls/1739777)
**Author:** [@martkarls](https://discussions.unity.com/u/martkarls)\ **Replies:** 0\ **Last updated:** [October 19, 2026, 2:32pm UTC](https://discussions.unity.com/t/appui-swipeview-conflicts-with-nested-interactive-controls/1739777 "2026-10-19T14:32:04Z")
Package: com.unity.dt.app-ui 3.0.0-pre.1 When a SwipeView contains interactive child controls such as a Slider or ScrollView, dragging those controls and then release starts a drag of the parent SwipeView. Expected beh… --- ## [Set Picking Mode via USS](https://discussions.unity.com/t/set-picking-mode-via-uss/838536)
**Author:** [@broots](https://discussions.unity.com/u/broots)\ **Replies:** 25\ **Last updated:** [October 19, 2026, 3:37pm UTC](https://discussions.unity.com/t/set-picking-mode-via-uss/838536 "2026-10-19T15:37:32Z")
Heya, something I’ve been bitten by a few times and was wondering if it’s possible to see a feature crop up out of. Very simple, right now as far as I can tell, you can only set picking mode via UXML or code. The problem… --- ## [UI Toolkit rich text color tag stops working if it takes up the whole label and with outline](https://discussions.unity.com/t/ui-toolkit-rich-text-color-tag-stops-working-if-it-takes-up-the-whole-label-and-with-outline/1739162)
**Author:** [@cz-ds](https://discussions.unity.com/u/cz-ds)\ **Replies:** 4\ **Last updated:** [October 15, 2026, 3:05pm UTC](https://discussions.unity.com/t/ui-toolkit-rich-text-color-tag-stops-working-if-it-takes-up-the-whole-label-and-with-outline/1739162 "2026-10-15T15:05:38Z")
Only happens when there is no other text before or after the tag, and the label has outline property set to some visible value. Btw, “color tag + outline uss” renders fine when it does show (e.g. by adding a space before… --- ## [Prototyping game UI with UI Toolkit and the Unity CLI](https://discussions.unity.com/t/prototyping-game-ui-with-ui-toolkit-and-the-unity-cli/1738349)
**Author:** [@wilmer-lin](https://discussions.unity.com/u/wilmer-lin)\ **Replies:** 16\ **Last updated:** [October 14, 2026, 1:18pm UTC](https://discussions.unity.com/t/prototyping-game-ui-with-ui-toolkit-and-the-unity-cli/1738349 "2026-10-14T13:18:56Z")
Hi everyone, We’ve published a new video tutorial on prototyping game interfaces in UI Toolkit, using the Unity CLI to let an AI agent help you build the user interface. It starts from concept art and a short written br… --- ## [Ligature support on text in editor windows](https://discussions.unity.com/t/ligature-support-on-text-in-editor-windows/1739173)
**Author:** [@vallis\_unity](https://discussions.unity.com/u/vallis_unity)\ **Replies:** 0\ **Last updated:** [October 14, 2026, 1:06pm UTC](https://discussions.unity.com/t/ligature-support-on-text-in-editor-windows/1739173 "2026-10-14T13:06:56Z")
I was using ligatures for some iconography in a 6.3.12 project. In XML I was able to just do, for example \ with a supported font and ligatures turned that into the correct glyph. Having updated t… --- ## [\[UI Toolkit\] Filter effect always bilinear?](https://discussions.unity.com/t/ui-toolkit-filter-effect-always-bilinear/1738869)
**Author:** [@NoixDeXydre](https://discussions.unity.com/u/NoixDeXydre)\ **Replies:** 2\ **Last updated:** [October 14, 2026, 12:02pm UTC](https://discussions.unity.com/t/ui-toolkit-filter-effect-always-bilinear/1738869 "2026-10-14T12:02:29Z")
Hello ! I’m currently making a 2D game in pixel art. Most of my UIs are using UI Toolkit. I want to apply a filter to this element right below : When I add, for example, an opacity filter function, my sprite become… --- ## [Layered/multiple runtime UI windows with PanelRenderer and UXML](https://discussions.unity.com/t/layered-multiple-runtime-ui-windows-with-panelrenderer-and-uxml/1737348)
**Author:** [@tuskymcmammoth](https://discussions.unity.com/u/tuskymcmammoth)\ **Replies:** 4\ **Last updated:** [October 11, 2026, 10:13pm UTC](https://discussions.unity.com/t/layered-multiple-runtime-ui-windows-with-panelrenderer-and-uxml/1737348 "2026-10-11T22:13:37Z")
What is the best practice for having multiple UIToolkit PanelRenderer/UXML-based “windows” open, or transitioning between mutually-exclusive ones within the same scene? For example, switching from a main menu to a settin… --- ## [VR Keyboard with UI Toolkit](https://discussions.unity.com/t/vr-keyboard-with-ui-toolkit/1738773)
**Author:** [@koirat](https://discussions.unity.com/u/koirat)\ **Replies:** 0\ **Last updated:** [October 9, 2026, 6:15pm UTC](https://discussions.unity.com/t/vr-keyboard-with-ui-toolkit/1738773 "2026-10-09T18:15:39Z")
I installed unity 6.6 updated all packages and wanted to see if something changed regarding UI Toolkit keyboard on VR oculus 3. When trying to focus on text field I got: Unity Oculus overlay keyboard is disabled, add '… --- ## [UI Buttons don't detect click](https://discussions.unity.com/t/ui-buttons-dont-detect-click/1738403)
**Author:** [@ashsaf07](https://discussions.unity.com/u/ashsaf07)\ **Replies:** 4\ **Last updated:** [October 7, 2026, 7:37am UTC](https://discussions.unity.com/t/ui-buttons-dont-detect-click/1738403 "2026-10-07T07:37:11Z")
Hello! I have come across a problem in my code when it comes to my UI buttons. I kinda just want this button to work so I can implement the same solution on all other buttons. Either way, I built this for a mouse first,… --- ## [Backdrop Filters in WebGL build](https://discussions.unity.com/t/backdrop-filters-in-webgl-build/1737803)
**Author:** [@irene\_reko](https://discussions.unity.com/u/irene_reko)\ **Replies:** 2\ **Last updated:** [October 3, 2026, 6:34am UTC](https://discussions.unity.com/t/backdrop-filters-in-webgl-build/1737803 "2026-10-03T06:34:09Z")
I can’t get backdrop filters working in a WebGL build. It shows a solid black background, although the background color of the element is transparent. The same scene works as expected in a Mac build. Are backdrop filte… --- ## [Uss Material vs Filter Performance Guidance](https://discussions.unity.com/t/uss-material-vs-filter-performance-guidance/1738173)
**Author:** [@jGate99](https://discussions.unity.com/u/jGate99)\ **Replies:** 2\ **Last updated:** [October 2, 2026, 8:37pm UTC](https://discussions.unity.com/t/uss-material-vs-filter-performance-guidance/1738173 "2026-10-02T20:37:11Z")
Dear Unity Team, Too keep Ui Toolkit Perrform well, I assign material via C# script instead of USS, when i know its the same material (since USS create multiple instances or wont be able to reuse earlier instances based… --- ## [Filter: drop-shadow adding blur to element](https://discussions.unity.com/t/filter-drop-shadow-adding-blur-to-element/1735524)
**Author:** [@dementcore](https://discussions.unity.com/u/dementcore)\ **Replies:** 15\ **Last updated:** [October 2, 2026, 10:46am UTC](https://discussions.unity.com/t/filter-drop-shadow-adding-blur-to-element/1735524 "2026-10-02T10:46:39Z")
Hi! I’m using drop-shadow filter in an element like this: filter: drop-shadow(5px 5px 5px rgb(0 0 0));. The filter is adding a blur to the entire element instead only the shadow. Attached screenshots: Elements hiera… --- ## [Any way to filter Data Source Path results?](https://discussions.unity.com/t/any-way-to-filter-data-source-path-results/1738073)
**Author:** [@Reazuur](https://discussions.unity.com/u/Reazuur)\ **Replies:** 2\ **Last updated:** [October 2, 2026, 9:56am UTC](https://discussions.unity.com/t/any-way-to-filter-data-source-path-results/1738073 "2026-10-02T09:56:21Z")
Hi there! I’ve been slowly trying to learn UI Toolkit, and I’m currently rebuilding all my current project’s UI with it to make things easier to maintain later on. So far it’s been pretty nice, but I have encountered th… --- ## [UI Toolkit world space UI is not affected by lighting](https://discussions.unity.com/t/ui-toolkit-world-space-ui-is-not-affected-by-lighting/1683971)
**Author:** [@sniperisa](https://discussions.unity.com/u/sniperisa)\ **Replies:** 4\ **Last updated:** [September 30, 2026, 3:48pm UTC](https://discussions.unity.com/t/ui-toolkit-world-space-ui-is-not-affected-by-lighting/1683971 "2026-09-30T15:48:15Z")
I made some UI Toolkit World Space UI panels that are like Pictures on Walls. But they stand out, aka are much too bright, because the world space lighting seems not to affect the UI panels. Is there a a way to configu… [Next page](https://discussions.unity.com/c/ui/ui-toolkit/201.md?page=1)