microsoft / microsoft/pxt-microbit
Simulator new functions are hard to see in High Contrast and Dark Theme after adding Jacdac extension
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Since Jun 20, 2025.
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Description
Describe the bug
When the Jacdac extension is added to the toolbox, the visibility of certain simulator new functions are significantly reduced in High Contrast and Dark Theme modes.
Steps to reproduce the behavior:
- Navigate to https://makecode.microbit.org/beta#
- Click on Settings → Theme → Dark or High Contrast.
- Open a new project.
- Click "Extension" ->Type Jacdac in the search bar.
- Click the Jacdac card to add the extension.
- Observe the new functions at the bottom of the simulator.
Actual behavior
Simulator new functions are hard to see in High Contrast and Dark Theme after adding the Jacdac extension.
Expected behavior
Simulator new functions should remain clearly visible in High Contrast and Dark Theme after adding the Jacdac extension.
Screenshots
Additional context
1.OS: Windows 11 24H2
2.Browser: Chrome, Firefox, Edge
3.makecode.microbit.org version: 7.1.44
4.Microsoft MakeCode version: 11.4.30
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Assessment
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