microsoft/Terminal

Terminal will always choose 16x16 image in profile icon regardless resolution and scaling when an .ico file is used.

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#19,264 建立於 2025年8月22日

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 (2 留言) (0 反應) (0 負責人)C++ (35,764 star) (3,212 fork)batch import
Area-UserInterfaceHelp WantedIssue-TaskProduct-Terminal

描述

Windows Terminal version

1.23.12102.0

Windows build number

10.0.26100.4946

Other Software

No response

Steps to reproduce

The attached icon has all the image sizes from 16 to 256 as follows:

Assign this test.ico file to a profile.

test.zip

Expected Behavior

Show different colors in the icon depending on the resolution and scaling, so it is selecting the best icon size for the screen like File Explorer does.

Actual Behavior

Windows terminal always shows an orange color, in the menu, tab or quick menu in the task bar. It means it is always choosing the 16x16 ico.

Importance

This is essential because WSL's new architecture only supports ico files as a shortcut icon. And as we can only ship the 256 one, it will make that Windows Terminal reduce the image and the results are not good.

貢獻者指南

技術棧
cpp
領域
desktop
議題類型
bug
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
3
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
half day
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
fresh
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
clear
前置要求
Basic C++ knowledgeFamiliarity with Windows icon formats
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
40
研究方向
Investigate the icon loading code path, likely in the Terminal's profile settings or rendering pipeline. Look for where .ico files are parsed and the icon size is selected. The attached test.ico contains multiple sizes; the bug is that only the 16x16 size is used. Search for functions handling icon extraction or image decoding in the src/ directory. Check if there is a fallback or default size selection logic that ignores the actual display resolution and scaling.