dotnet/winforms

[Dark Mode] Different Icon Display for Expanding Nodes with Child Items in TreeView

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#11,932 建立於 2024年8月20日

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area-DarkModehelp wanted

描述

.NET version

9.0.0-rc.1.24414.1 + build private dll from winforms repo main branch

Did it work in .NET Framework?

No

Did it work in any of the earlier releases of .NET Core or .NET 5+?

This is a new feature Dark Mode: https://github.com/dotnet/winforms/pull/11857

Issue description

The icon for expanding nodes with child items in TreeView appears differently in Dark Mode compared to Classic. Please confirm if this is the expected behavior. Below are the results in Classic and Dark Mode

Classic Screenshot 2024-08-20 055045

Dark Mode Screenshot 2024-08-20 054838

Steps to reproduce

  1. Create a WinForms .NET Core application with TreeView control.
  2. Populate the TreeView with a parent node that contains several child nodes.
  3. Enable DarkMode by Application.SetColorMode(SystemColorMode.Dark) in Program.cs file.
  4. Run the application.
  5. Observe the expand icon

貢獻者指南

技術棧
csharp
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。
1-3 hours
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
C#WinForms basics
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。
60
研究方向
Investigate the TreeView expand icon rendering in dark mode. Compare the Classic and Dark Mode glyph drawing logic. The relevant code is likely in the TreeView control's painting methods. Check the recent dark mode changes in PR #11857.