dotnet/winforms

[Dark Mode] Focused TrackBar in dark mode lacks contrast, needs more visual guidance.

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#11,915 建立於 2024年8月19日

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描述

.NET version

9.0.0-rc.1.24414.1 + build private dll form 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 cursor of TrackBar controls should have the visible color when using mouse hover on it GetImage (1)

Steps to reproduce

  1. Create a WinForms .NET Core application with TrackBar control.
  2. Enable DarkMode by Application.SetColorMode(SystemColorMode.Dark) in Program.cs file.
  3. Run the application.
  4. Using mouse hover on it

貢獻者指南

技術棧
csharp
領域
desktopaccessibility
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。
2
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。
under 1 hour
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。
active
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 knowledge of Windows Forms renderingFamiliarity with dark mode implementation in WinForms
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。
75
研究方向
Investigate the TrackBar control's rendering code for dark mode, likely in files such as TrackBarRenderer.cs or related theming code. The referenced PR #11857 introduced dark mode support; focus on the portion handling cursor/hover appearance. Examine existing comments in the issue to understand expected contrast levels.