phetsims/joist

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Joist is the main framework for PhET Interactive Simulations. Joist creates and displays the simulation content, home screen, navigation bar, About dialog, enables switching between tabs, and other framework-related features.

Stars: 10
Forks: 10
Open beginner issues: 0
Indexed issues: 104

Dominant language: TypeScript
License: MIT
Last GitHub push: Jul 1, 2026
Latest indexed: Sep 20, 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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104 open issues indexed

Sim factoryReset Open

phetsims/joist#1047 · 1 assignee · Opened Sep 16, 2026
Context menu is distracting Open

type:open-source-ecosystem

phetsims/joist#1042 · 11 comments · 1 assignee · Opened Jun 29, 2026
Needed improvements to About Dialog for Description and Voicing Open

design:description design:voicing meeting:design

phetsims/joist#1039 · 3 comments · 1 assignee · Opened Mar 26, 2026
Should preferences menu be recentered after hiding auto read? Open

design:general

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

phetsims/joist#1035 · 1 comment · Opened Nov 18, 2025
Small number of translations makes Localization tab have too short width Open

type:bug

phetsims/joist#1033 · 1 comment · 1 assignee · Opened Sep 30, 2025
PreferencesControl should implement Voicing by default Open

dev:voicing

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

phetsims/joist#1024 · Opened Aug 9, 2025
Audio button can become disabled Open

type:bug

phetsims/joist#1020 · 1 assignee · Opened Jun 16, 2025
Keyboard help content should include basic actions by default Open

dev:alt-input

phetsims/joist#1006 · 1 assignee · Opened Feb 7, 2025
Add support for a popup layer. Open

dev:enhancement

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

phetsims/joist#1004 · Opened Jan 16, 2025
Error: Assertion failed: The focused Node should have a one and only one PDOM instance LanguageSelectionNode#7268 Open

status:ready-for-review type:automated-testing

phetsims/joist#1013 · 6 comments · 1 assignee · Opened Jan 10, 2025
SceneryStack needs actual locale list for Locale type Open

status:ready-for-review type:open-source-ecosystem

phetsims/joist#1003 · 6 comments · 1 assignee · Opened Dec 23, 2024
Eye dropper - could we have default confirmatory context responses? Open

design:description dev:description

phetsims/joist#998 · 1 assignee · Opened Dec 4, 2024
Tab strings in Preferences dialog may not be centered vertically Open

type:bug

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

phetsims/joist#996 · 6 comments · Opened Nov 26, 2024
Text in the About/Preferences menu has different font sizes Open

type:bug

Difficulty 4/5 3-5 days Newbie friendliness 45/100

phetsims/joist#991 · 2 comments · Opened Nov 14, 2024
Add support for high contrast modes Open

type:open-source-ecosystem

phetsims/joist#988 · 1 assignee · Opened Nov 4, 2024
Import package.json directly instead of needing a global Open

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

phetsims/joist#984 · 1 comment · Opened Oct 15, 2024
User suggestion: option to darken nav bar Open

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

phetsims/joist#983 · Opened Sep 17, 2024
Screen titles in nav bar can be very close together Open

priority:5-deferred type:bug

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

phetsims/joist#982 · 8 comments · Opened Aug 12, 2024
Delete unused translations of region and culture strings Open

phetsims/joist#975 · 1 comment · 1 assignee · Opened Jul 2, 2024
Localization tab format Open

priority:4-low type:bug

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

phetsims/joist#972 · 3 comments · Opened Jun 20, 2024
Yotta does not correctly track the locale for standard wrapper use Open

phetsims/joist#971 · 1 assignee · Opened Jun 12, 2024
Add query parameters to customize Voicing features Open

dev:voicing

phetsims/joist#968 · 5 comments · 1 assignee · Opened May 21, 2024
Long term: Update query parameter error message after website work to elevate visibility of query parameter options Open

priority:5-deferred

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

phetsims/joist#967 · 1 comment · Opened May 16, 2024
Make locale parameter case insensitive Open

priority:2-high

phetsims/joist#966 · 1 comment · 1 assignee · Opened May 11, 2024
Standardize the tandem hierarchy under "preferencesPanels" Open

priority:2-high

phetsims/joist#961 · 2 comments · 1 reaction · 1 assignee · Opened Apr 9, 2024
Screen titles in nav bar can be cut off with some locales Open

priority:5-deferred type:bug

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

phetsims/joist#952 · 6 comments · Opened Feb 14, 2024
Fallback locale doesn't work Open

type:bug

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

phetsims/joist#951 · 2 comments · Opened Feb 5, 2024
RegionAndCulture Description Open

phetsims/joist#944 · 1 comment · 1 assignee · Opened Nov 29, 2023
Is it OK to have irrelevant info in the keyboard dialog after PhET-iO customizations? Open

priority:5-deferred type:question

Difficulty 4/5 3-5 days Newbie friendliness 25/100

phetsims/joist#936 · 2 comments · Opened Aug 28, 2023
Add volume control to the sim sounds Open

type:user-feedback

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

phetsims/joist#931 · 3 comments · Opened Jun 19, 2023
Screen Icons sometimes get blurred when there's text on them Open

phetsims/joist#927 · 1 assignee · Opened May 31, 2023
Show the home screen as soon as possible Open

phetsims/joist#924 · 3 comments · 3 reactions · 3 assignees · Opened May 17, 2023
Voicing design question: Should the Sim's Title/Name be voice-able? Open

design:voicing type:question

phetsims/joist#920 · 7 comments · 1 assignee · Opened Apr 25, 2023
Dynamic locale changes causes Dialogs to change scale and size Open

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

phetsims/joist#918 · Opened Apr 5, 2023
Locales are not presented in alphabetical order. Open

status:ready-for-review type:bug type:i18n

phetsims/joist#911 · 6 comments · 1 assignee · Opened Mar 1, 2023
number-suite-common/CarouselItemNode could maybe be used in place of LanguageSelectionNode Open

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

phetsims/joist#908 · Opened Feb 24, 2023
Localization preferences column layout is uneven Open

type:i18n type:suggestion

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

phetsims/joist#900 · 3 comments · Opened Jan 20, 2023
Use PatternStringProperty pattern instead of ScreenView.setScreenSummaryIntroAndTitle() Open

status:on-hold

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

phetsims/joist#885 · Opened Nov 25, 2022
Navbar: screen title `maxWidth` does not scale well with dynamic strings Open

type:i18n

phetsims/joist#884 · 1 assignee · Opened Nov 22, 2022
Add "Teacher Tips" link to Preferences Dialog Open

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

phetsims/joist#880 · Opened Nov 11, 2022
Sims should link to GitHub Open

type:open-source-ecosystem

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

phetsims/joist#879 · Opened Nov 7, 2022
Preferences Dialog: When only audio is some sound, simplify "Sound" text description Open

phetsims/joist#871 · 7 comments · 1 assignee · Opened Oct 13, 2022
High contrast mode and other modes like it should not be output into the state Open

design:phet-io dev:phet-io priority:5-deferred

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

phetsims/joist#865 · 1 comment · Opened Sep 22, 2022
Preferences dialog lacks consistent UI style. Open

design:general

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

phetsims/joist#842 · 15 comments · Opened Aug 23, 2022
Make Sim.topLayer private Open

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

phetsims/joist#841 · 2 comments · Opened Aug 23, 2022
UI and API for selecting color profile is unnecessarily limiting. Open

design:general priority:5-deferred

Difficulty 5/5 Over a week Newbie friendliness 35/100

phetsims/joist#836 · 11 comments · Opened Aug 22, 2022
Move backgroundColor from Screen to ScreenView Open

good-first-issue help-wanted priority:4-low

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

phetsims/joist#807 · 3 comments · Opened May 9, 2022
updateCheck deprecation warning Open

phetsims/joist#806 · 1 assignee · Opened May 2, 2022
Add a hotkey to take screenshots Open

dev:alt-input priority:4-low

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

phetsims/joist#801 · Opened Apr 13, 2022
Helper tooling (picker/coordinates/inspector/etc.) Open

phetsims/joist#792 · 2 comments · 1 assignee · Opened Mar 9, 2022

phetsims/joist

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