Add category dropdown with existing categories in macro editor

- Replace QLineEdit with editable QComboBox for category field
- Populate dropdown with existing categories from saved macros
- Allow typing new category names (editable combo box)
- Add styled dropdown arrow and item view to match dark theme

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

gui/macro_editor.py

@@ -7,7 +7,7 @@ from PySide6.QtWidgets import (
     QDialog, QVBoxLayout, QHBoxLayout, QFormLayout,
     QLabel, QLineEdit, QPushButton, QListWidget, QListWidgetItem,
     QComboBox, QSpinBox, QMessageBox, QFileDialog, QWidget,
-    QGroupBox, QScrollArea
+    QGroupBox, QScrollArea, QCompleter
 )
 from PySide6.QtCore import Qt, Signal
 from PySide6.QtGui import QPixmap, QIcon
@@ -352,6 +352,33 @@ class MacroEditorDialog(QDialog):
             QLineEdit:focus {{
                 border-color: {THEME['accent_color']};
             }}
+            QComboBox {{
+                background-color: {THEME['bg_color']};
+                border: 1px solid {THEME['button_bg']};
+                border-radius: 4px;
+                padding: 8px;
+                color: {THEME['fg_color']};
+            }}
+            QComboBox:focus {{
+                border-color: {THEME['accent_color']};
+            }}
+            QComboBox::drop-down {{
+                border: none;
+                width: 20px;
+            }}
+            QComboBox::down-arrow {{
+                image: none;
+                border-left: 5px solid transparent;
+                border-right: 5px solid transparent;
+                border-top: 5px solid {THEME['fg_color']};
+                margin-right: 5px;
+            }}
+            QComboBox QAbstractItemView {{
+                background-color: {THEME['bg_color']};
+                color: {THEME['fg_color']};
+                selection-background-color: {THEME['accent_color']};
+                border: 1px solid {THEME['button_bg']};
+            }}
         """)
 
         self.setup_ui()
@@ -400,8 +427,14 @@ class MacroEditorDialog(QDialog):
         category_group = QGroupBox("Category (optional)")
         category_group.setStyleSheet(name_group.styleSheet())
         category_layout = QVBoxLayout(category_group)
-        self.category_input = QLineEdit()
+        self.category_input = QComboBox()
-        self.category_input.setPlaceholderText("Enter category")
+        self.category_input.setEditable(True)
+        self.category_input.setInsertPolicy(QComboBox.NoInsert)
+        self.category_input.lineEdit().setPlaceholderText("Select or enter category")
+        # Populate with existing categories (excluding "All")
+        existing_categories = [c for c in self.macro_manager.get_unique_tabs() if c != "All"]
+        self.category_input.addItem("")  # Empty option for no category
+        self.category_input.addItems(existing_categories)
         category_layout.addWidget(self.category_input)
         content_layout.addWidget(category_group)
 
@@ -522,7 +555,7 @@ class MacroEditorDialog(QDialog):
             return
 
         self.name_input.setText(macro.get("name", ""))
-        self.category_input.setText(macro.get("category", ""))
+        self.category_input.setCurrentText(macro.get("category", ""))
         self.command_builder.set_commands(macro.get("commands", []))
 
         if macro.get("image_path"):
@@ -563,7 +596,7 @@ class MacroEditorDialog(QDialog):
             QMessageBox.warning(self, "Error", "Please add at least one command")
             return
 
-        category = self.category_input.text().strip()
+        category = self.category_input.currentText().strip()
 
         if self.macro_id:
             # Update existing macro