Re-enabling theming requires two restarts instead of one
维护者通常 1 天内回复
评估
调研方向
Start by tracing the Appearance preferences flow that saves the Enable Theming setting and restores the selected theme after restart; the issue names no files or tests. Reproduce the disable, restart, re-enable, restart sequence in a clean workspace, then inspect the preference and startup paths involved. Done means the previously selected theme is applied after the first restart when theming is re-enabled.
由索引模型根据 Issue 内容生成。
描述
After disabling theming and restarting, if the user re-checks Enable Theming and clicks Apply, Eclipse restarts. After that restart theming is active but no theme has been selected or applied. The user must open Preferences a second time, pick a theme, and restart again. Two restarts are required to get back to a themed state.
Steps to reproduce
From a fresh installation and clean workspace:
- Open Window → Preferences → General → Appearance with theming enabled.
- Uncheck Enable Theming, click Apply, and restart when prompted.
- After restart, open Window → Preferences → General → Appearance.
- Re-check Enable Theming, click Apply, and restart when prompted.
- Current Beha: Eclipse starts with theming on but no theme applied — the workbench has no CSS styling. User must open Preferences again, select a theme, and restart a third time.
- Expected: After step 4's restart, Eclipse starts with theming on and a theme already applied — one restart total.
Follow up to Issue: https://github.com/eclipse-platform/eclipse.platform.ui/issues/4502
Tested under this environment:
Eclipse SDK
Version: 2026-12 (4.42)
Build id: I20261015-2300
OS: Mac OS X, v.27.0.1, aarch64 / cocoa
Java vendor: IBM Corporation
Java runtime version: 26.0.1+8
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