修复气泡底色问题

main.py

@@ -111,6 +111,17 @@ def main():
     ball.clicked.connect(lambda: panel.show_near(ball.pos(), BALL_SIZE))
     ball.right_clicked.connect(lambda pos: panel.tray.contextMenu().exec(pos))
 
+    # 全局快捷键 Alt+` 唤醒/隐藏主界面
+    from PyQt6.QtGui import QShortcut, QKeySequence
+    _shortcut = QShortcut(QKeySequence("Alt+`"), panel)
+    _shortcut.setContext(Qt.ShortcutContext.ApplicationShortcut)
+    def _toggle_panel():
+        if panel.isVisible():
+            panel.minimize_to_ball()
+        else:
+            panel.show_near(ball.pos(), BALL_SIZE)
+    _shortcut.activated.connect(_toggle_panel)
+
     has_saved = bool(database.get_setting("panel_x", ""))
     if has_saved:
         panel.setWindowOpacity(0)

ui/dock.py

@@ -22,6 +22,7 @@ from PyQt6.QtWidgets import (
     QLabel,
     QMessageBox,
     QGridLayout,
+    QFrame,
 )
 from PyQt6.QtCore import (
     Qt,
@@ -41,6 +42,61 @@ import ui.dialog_style as dialog_style
 from ui.updater import Updater
 from app_info import app_title
 
+
+class _ThemedTooltip(QFrame):
+    """跟随主题颜色的自定义 tooltip，替代系统黑色气泡。"""
+    def __init__(self, text: str):
+        super().__init__(None, Qt.WindowType.ToolTip | Qt.WindowType.FramelessWindowHint)
+        self.setAttribute(Qt.WidgetAttribute.WA_TranslucentBackground)
+        self.setAttribute(Qt.WidgetAttribute.WA_ShowWithoutActivating)
+        self._lbl = QLabel(text, self)
+        self._lbl.setObjectName("tip_label")
+        lay = QVBoxLayout(self)
+        lay.setContentsMargins(0, 0, 0, 0)
+        lay.addWidget(self._lbl)
+
+    def refresh_style(self):
+        t = theme.current()
+        is_dark = theme.name() == "dark"
+        bg = "#2d2d2d" if is_dark else "#ffffff"
+        fg = "#eeeeee" if is_dark else "#111111"
+        bd = t.get("search_border", "#888")
+        self._lbl.setStyleSheet(
+            f"QLabel#tip_label {{"
+            f"background:{bg}; color:{fg}; border:1px solid {bd};"
+            f"border-radius:6px; padding:5px 9px; font-size:12px;}}"
+        )
+
+
+def _install_themed_tooltip(btn: QPushButton, text: str):
+    """给按钮安装自定义 tooltip，完全替换系统气泡。"""
+    btn.setToolTip("")
+    tip   = _ThemedTooltip(text)
+    timer = QTimer()
+    timer.setSingleShot(True)
+
+    def _show():
+        tip.refresh_style()
+        tip.adjustSize()
+        pos = QCursor.pos()
+        tip.move(pos.x() + 14, pos.y() + 22)
+        tip.show()
+        tip.raise_()
+
+    def _enter(_e):
+        timer.start(400)
+
+    def _leave(_e):
+        timer.stop()
+        tip.hide()
+
+    timer.timeout.connect(_show)
+    btn.enterEvent = _enter
+    btn.leaveEvent = _leave
+    btn._tip   = tip    # 防 GC
+    btn._ttimer = timer  # 防 GC
+
+
 PANEL_W = 260
 PANEL_H = 40
 MIN_W, MIN_H = 400, 5
@@ -548,10 +604,9 @@ class PanelWindow(QWidget):
         for tooltip, icon_name, callback in self._get_quick_actions():
             btn = QPushButton()
             btn.setFixedSize(34, 34)
-            btn.setToolTip(tooltip)
+            _install_themed_tooltip(btn, tooltip)
             btn.setStyleSheet("border:none; background:transparent; border-radius:4px;")
             btn.setMouseTracking(True)
-            # 鼠标落在按钮上时，也要能触发边缘检测/resize
             btn.installEventFilter(self)
             try:
                 btn.setIcon(qta.icon(icon_name, color="#888"))
@@ -712,7 +767,7 @@ class PanelWindow(QWidget):
 
         self.menu_btn = QPushButton()
         self.menu_btn.setFixedSize(28, 28)
-        self.menu_btn.setToolTip("菜单")
+        _install_themed_tooltip(self.menu_btn, "菜单")
         self.menu_btn.setStyleSheet(
             "border:none; background:transparent; border-radius:4px;"
         )
@@ -720,7 +775,7 @@ class PanelWindow(QWidget):
 
         self.theme_btn = QPushButton()
         self.theme_btn.setFixedSize(28, 28)
-        self.theme_btn.setToolTip("切换亮/暗主题")
+        _install_themed_tooltip(self.theme_btn, "切换亮/暗主题")
         self.theme_btn.setStyleSheet(
             "border:none; background:transparent; border-radius:4px;"
         )
@@ -728,7 +783,7 @@ class PanelWindow(QWidget):
 
         self.settings_btn = QPushButton()
         self.settings_btn.setFixedSize(28, 28)
-        self.settings_btn.setToolTip("设置")
+        _install_themed_tooltip(self.settings_btn, "设置")
         self.settings_btn.setStyleSheet(
             "border:none; background:transparent; border-radius:4px;"
         )
@@ -736,7 +791,7 @@ class PanelWindow(QWidget):
 
         self.quit_btn = QPushButton()
         self.quit_btn.setFixedSize(28, 28)
-        self.quit_btn.setToolTip("退出程序")
+        _install_themed_tooltip(self.quit_btn, "退出程序")
         self.quit_btn.setStyleSheet(
             "border:none; background:transparent; border-radius:4px;"
         )
@@ -746,7 +801,7 @@ class PanelWindow(QWidget):
         bottom_layout.addStretch()
         self.update_btn = QPushButton()
         self.update_btn.setFixedSize(28, 28)
-        self.update_btn.setToolTip("检查更新")
+        _install_themed_tooltip(self.update_btn, "检查更新")
         self.update_btn.setStyleSheet("border:none; background:transparent; border-radius:4px;")
         self.update_btn.clicked.connect(lambda: self._updater.check(silent_if_latest=False))
         bottom_layout.addWidget(self.update_btn)
@@ -903,13 +958,24 @@ class PanelWindow(QWidget):
 
     def _apply_tooltip_theme(self, t: dict, is_dark: bool):
         """让所有控件 tooltip 跟随主题（含快捷栏按钮）。"""
+        from PyQt6.QtGui import QPalette, QColor
+        from PyQt6.QtWidgets import QToolTip
+
         app = QApplication.instance()
         if app is None:
             return
-        bg = "rgba(45,45,45,245)" if is_dark else "rgba(255,255,255,250)"
-        fg = "#eeeeee" if is_dark else "#111111"
-        bd = t.get("menu_border") or t.get("search_border") or t.get("panel_border") or "#666"
 
+        bg = "#2d2d2d" if is_dark else "#ffffff"
+        fg = "#eeeeee" if is_dark else "#111111"
+        bd = t.get("menu_border") or t.get("search_border") or "#666"
+
+        # 通过 palette 强制覆盖 tooltip 颜色（Windows 上 stylesheet 单独不够）
+        palette = app.palette()
+        palette.setColor(QPalette.ColorRole.ToolTipBase, QColor(bg))
+        palette.setColor(QPalette.ColorRole.ToolTipText, QColor(fg))
+        app.setPalette(palette)
+
+        # stylesheet 同步设置（双保险）
         start = "/*TOOLTIP_THEME_START*/"
         end   = "/*TOOLTIP_THEME_END*/"
         tooltip_css = (
@@ -921,19 +987,17 @@ class PanelWindow(QWidget):
             "  border-radius: 6px;\n"
             "  padding: 6px 8px;\n"
             "  font-size: 12px;\n"
+            "  opacity: 240;\n"
             "}\n"
             f"{end}\n"
         )
-
         ss = app.styleSheet() or ""
         if start in ss and end in ss:
             pre  = ss.split(start, 1)[0]
             post = ss.split(end,   1)[1]
             ss   = pre + tooltip_css + post
         else:
-            if ss and not ss.endswith("\n"):
-                ss += "\n"
-            ss += tooltip_css
+            ss = (ss + "\n" if ss and not ss.endswith("\n") else ss) + tooltip_css
         app.setStyleSheet(ss)
 
     def _quit_application(self):

ui/settings_window.py

@@ -54,6 +54,7 @@ class SettingsWindow(QDialog):
             ("fa5s.rocket",       "启动"),
             ("fa5s.folder-open",  "缓存"),
             ("fa5s.heart",        "捐赠"),
+            ("fa5s.info-circle",  "关于"),
             ("fa5s.eraser",       "初始化"),
         ]
         self._nav_ready = False
@@ -79,6 +80,7 @@ class SettingsWindow(QDialog):
         self.stack.addWidget(self._page_startup())
         self.stack.addWidget(self._page_cache())
         self.stack.addWidget(self._page_donate())
+        self.stack.addWidget(self._page_about())
         self.stack.addWidget(self._page_initialization())
         # 此时 stack 已就绪，允许导航回调正常工作
         self._nav_ready = True
@@ -241,11 +243,24 @@ class SettingsWindow(QDialog):
         self._autostart_check.toggled.connect(self._on_autostart)
         layout.addWidget(self._autostart_check)
 
-        layout.addWidget(self._divider())
+        layout.addStretch()
+        return page
+
+    def _page_about(self) -> QWidget:
+        page = QWidget()
+        layout = QVBoxLayout(page)
+        layout.setContentsMargins(24, 20, 24, 20)
+        layout.setSpacing(16)
+
         layout.addWidget(self._section_title("关于"))
 
-        about = QLabel(f"{APP_NAME}  v{__VERSION__}\n整理你的桌面快捷方式，保持桌面干净。")
-        about.setStyleSheet("color:#888; font-size:12px; line-height:1.6;")
+        about = QLabel(
+            f"<b>{APP_NAME}</b>  v{__VERSION__}<br><br>"
+            "整理你的桌面快捷方式，保持桌面干净。<br><br>"
+            "快捷键：<b>Alt + `</b>  唤醒 / 隐藏主界面"
+        )
+        about.setStyleSheet("color:#888; font-size:12px; line-height:1.8;")
+        about.setTextFormat(Qt.TextFormat.RichText)
         layout.addWidget(about)
 
         layout.addStretch()