Bold text appears wider than regular text when using the Light and SemiLight variants #21145

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opened 2026-01-31 07:34:30 +00:00 by claunia · 0 comments
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Originally created by @CutterXYZ on GitHub (Jan 27, 2024).

Windows Terminal version

1.18.3181.0

Windows build number

10.0.19045.3996

Other Software

Tested in Eclipse IDE and Notepad++, with the latest version of Cascadia Code available (.ttf version).

Steps to reproduce

  1. Launch Eclipse
  2. Go to Window > Preferences. Then General > Appearance > Colors and Fonts. Select category Basic > Text Font, click "Edit..." and set the font to Cascadia Code SemiLight.
  3. Display text with mixed weights (for example with emphasized keywords).
  4. Notice bold text is wider than regular text.

Expected Behavior

Bold text and regular text should appear monospaced.

Actual Behavior

Bold text is wider than regular text (see screenshot).
image

In MS Word, there is no difference in width, but bold SemiLight text is rendered strangely:
image

Originally created by @CutterXYZ on GitHub (Jan 27, 2024). ### Windows Terminal version 1.18.3181.0 ### Windows build number 10.0.19045.3996 ### Other Software Tested in Eclipse IDE and Notepad++, with the latest version of Cascadia Code available (.ttf version). ### Steps to reproduce 1. Launch Eclipse 2. Go to Window > Preferences. Then General > Appearance > Colors and Fonts. Select category Basic > Text Font, click "Edit..." and set the font to Cascadia Code SemiLight. 3. Display text with mixed weights (for example with emphasized keywords). 4. Notice bold text is wider than regular text. ### Expected Behavior Bold text and regular text should appear monospaced. ### Actual Behavior Bold text is wider than regular text (see screenshot). ![image](https://github.com/microsoft/terminal/assets/29694177/173d959f-4762-4b8e-9758-64ba7d6d2c6a) In MS Word, there is no difference in width, but bold SemiLight text is rendered strangely: ![image](https://github.com/microsoft/terminal/assets/29694177/17ff374f-b215-4bcf-921a-79971bbd9d69)
claunia added the Needs-TriageIssue-Bug labels 2026-01-31 07:34:30 +00:00
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Reference: starred/terminal#21145