phetsims/sun

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User-interface components for PhET simulations, built on top of Scenery.

Stars: 7
Forks: 16
Open beginner issues: 0
Indexed issues: 125

Dominant language: TypeScript
License: MIT
Last GitHub push: Jun 17, 2026
Latest indexed: Sep 21, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: help wanted good first issue
PR merge metrics: No merged PRs in 30d

Beginner friendly Everything

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125 open issues indexed

Support PhetUnit in AccessibleValueHandler Open

dev:description

phetsims/sun#984 · 1 comment · 1 assignee · Opened Sep 3, 2026
Design options for object and context responses for sliders Open

design:description dev:description dev:enhancement

phetsims/sun#982 · 2 comments · 1 assignee · Opened Aug 6, 2026
Support shift and page keyboard steps in NumberSpinner, NumberPicker, and FineCoarseSpinner Open

design:alt-input

phetsims/sun#979 · 4 comments · 2 assignees · Opened Jul 6, 2026
Document design pattern documentation for Dialog and its configuration options Open

design:description dev:description type:documentation

phetsims/sun#975 · 1 assignee · Opened Apr 2, 2026
Add 'grid' layout support to RectangularRadioButtonGroup. Open

dev:enhancement

Difficulty 4/5 3-5 days Newbie friendliness 52/100

phetsims/sun#972 · 5 comments · Opened Mar 17, 2026
Update design pattern documentation for Radio Button Group Open

design:description type:documentation

phetsims/sun#970 · 1 comment · 1 assignee · Opened Feb 23, 2026
Push buttons don't play sound if disposed when fired Open

priority:5-deferred

phetsims/sun#967 · 1 assignee · Opened Jan 16, 2026
Can ComboBox handle groups? Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

phetsims/sun#963 · 2 comments · Opened Dec 15, 2025
ComboBox - Vertical ComboBox as Y-Axis Label: Rotation Impacts List Parent Width Open

dev:enhancement

Difficulty 3/5 1-2 days Newbie friendliness 45/100

phetsims/sun#954 · Opened Oct 30, 2025
Rectangular Boolean Button - Document Description and Voicing Patterns Open

design:description design:voicing type:documentation

phetsims/sun#946 · 4 comments · 1 assignee · Opened Aug 18, 2025
Momentary buttons do not work with iOS VoiceOver Open

dev:description priority:5-deferred type:bug

Difficulty 4/5 3-5 days Newbie friendliness 30/100

phetsims/sun#938 · 2 comments · Opened Jun 13, 2025
AccessibleValueHandler could automatically speak voicing context responses Open

dev:voicing

Difficulty 3/5 1-2 days Newbie friendliness 38/100

phetsims/sun#936 · 2 comments · Opened Apr 18, 2025
Documentation for `size`, `minWidth`, `minHeight` and implementation is contradictory in RectangularButton Open

type:documentation type:open-source-ecosystem

phetsims/sun#931 · 1 assignee · Opened Mar 18, 2025
Rename aria-valuetext and context response functions in AccessibleValueHandler Open

dev:description

phetsims/sun#929 · 8 comments · 1 reaction · 1 assignee · Opened Feb 27, 2025
Add an option for AccordionBox to reduce its width when collapsed Open

status:ready-for-review

phetsims/sun#924 · 3 comments · 1 assignee · Opened Dec 19, 2024
NumberSpinner support for dynamic layout. Open

dev:enhancement

Difficulty 3/5 1-2 days Newbie friendliness 35/100

phetsims/sun#918 · 3 comments · Opened Dec 3, 2024
Create a non-modal dialog Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

phetsims/sun#916 · 5 comments · Opened Nov 14, 2024
Responsive component styles Open

type:open-source-ecosystem

phetsims/sun#910 · 1 assignee · Opened Nov 4, 2024
MenuItem cannot include Font Awesome 5's checkSolidShape Open

type:licensing type:open-source-ecosystem

phetsims/sun#909 · 1 comment · 1 assignee · Opened Oct 30, 2024
Provide a higher-level API for specifying PDOM structure. Open

dev:description

Difficulty 5/5 Over a week Newbie friendliness 25/100

phetsims/sun#900 · 3 comments · Opened Oct 20, 2024
Build out support for high-level ParallelDOM APIs in common-code UI components. Open

design:description dev:description

phetsims/sun#901 · 2 comments · 1 assignee · Opened Oct 20, 2024
ToggleButtons.md needs to be fleshed out. Open

design:description priority:5-deferred

phetsims/sun#898 · 3 comments · 1 assignee · Opened Oct 15, 2024
AccordionBox is handling margins inconsistently Open

type:bug

phetsims/sun#892 · 1 assignee · Opened Sep 6, 2024
AccordionBox does not handle dynamic layout of title. Open

type:bug

phetsims/sun#890 · 8 comments · 1 assignee · Opened Aug 1, 2024
ComboBoxButton shrinks as locale is changed. Open

dev:maintenance-release type:bug

phetsims/sun#889 · 4 comments · 1 assignee · Opened Aug 1, 2024
PhET-iO: too many instrumented containers Open

dev:phet-io

Difficulty 5/5 Over a week Newbie friendliness 20/100

phetsims/sun#888 · Opened Jul 8, 2024
Memory leaks in ButtonNode Open

priority:2-high type:bug type:performance

phetsims/sun#887 · 9 comments · 2 assignees · Opened Jul 5, 2024
Add displayOnlyProperty to NumberPicker and NumberDisplay Open

design:phet-io

Difficulty 5/5 Over a week Newbie friendliness 20/100

phetsims/sun#884 · 1 comment · Opened May 21, 2024
rectangularRadioButtonGroup should have a thicker stroke as default styling Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

phetsims/sun#883 · Opened May 17, 2024
Investigate creating a DisplayMode for NumberPickers Open

design:phet-io dev:phet-io

phetsims/sun#932 · 19 comments · 1 assignee · Opened May 16, 2024
PhET-iO instrumentation of 'spinner' UI components. Open

design:description design:phet-io dev:phet-io priority:3-medium

phetsims/sun#881 · 3 comments · 1 assignee · Opened Apr 29, 2024
Button LayoutOptions unexpectedly affects the buttonContent rather than the layout cell Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

phetsims/sun#871 · Opened Jan 24, 2024
Add dynamic support for component a11y Open

phetsims/sun#865 · 2 comments · 1 assignee · Opened Dec 19, 2023
Components with "content" should refrain from Decorator Pattern Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

phetsims/sun#860 · 15 comments · Opened Dec 7, 2023
Accessibility support for PushButtonModel Open

dev:alt-input

phetsims/sun#857 · 1 comment · 1 assignee · Opened Sep 18, 2023
ComboBox stretching is buggy Open

type:bug

phetsims/sun#849 · 1 comment · 1 assignee · Opened Jul 7, 2023
Dynamic layout bug in AccordionBox Open

priority:2-high type:bug

phetsims/sun#848 · 2 comments · 1 assignee · Opened Jun 20, 2023
Strange order dependency on start/end callbacks and fire() Open

phetsims/sun#844 · 1 comment · 1 assignee · Opened May 3, 2023
Delete constrainValue from AccessibleValueHandler Open

dev:alt-input

phetsims/sun#837 · 9 comments · 1 reaction · 1 assignee · Opened Mar 17, 2023
Add options to dilate pointer areas for Slider's track Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

phetsims/sun#836 · Opened Mar 14, 2023
Confusion around createNode( tandem ) and tandemName Open

dev:phet-io priority:3-medium

Difficulty 4/5 3-5 days Newbie friendliness 35/100

phetsims/sun#822 · 2 comments · Opened Jan 13, 2023
Combo box listbox can become detached from button Open

type:bug type:i18n

phetsims/sun#812 · 7 comments · 1 assignee · Opened Nov 29, 2022
Unexpected behavior FlowBox wrap:true inside of Panel Open

phetsims/sun#808 · 7 comments · 1 assignee · Opened Oct 28, 2022
Dynamic range in Slider Open

phetsims/sun#802 · 4 comments · 1 assignee · Opened Oct 20, 2022
Dead code in Slider.ts Open

phetsims/sun#757 · 1 assignee · Opened May 10, 2022
TContentAppearanceStrategy and TButtonAppearanceStrategy should be parameterized. Open

dev:typescript

Difficulty 3/5 1-2 days Newbie friendliness 35/100

phetsims/sun#755 · 1 comment · Opened Apr 11, 2022
Review pattern for ContentAppearanceStrategy Open

phetsims/sun#752 · 1 comment · 1 assignee · Opened Apr 11, 2022
Address TODO about propagating options to button model. Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

phetsims/sun#749 · 2 comments · Opened Apr 8, 2022
Ready Dynamic Layout for Broader Use Open

type:quarterly

Difficulty 5/5 Over a week Newbie friendliness 15/100

phetsims/sun#725 · 1 comment · Opened Oct 27, 2021
Slider problems with vertical orientation Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

phetsims/sun#717 · 5 comments · Opened Sep 21, 2021

phetsims/sun

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