diff --git a/booru_viewer/gui/custom_css_guide.txt b/booru_viewer/gui/custom_css_guide.txt
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-booru-viewer Custom Stylesheet Guide
-=====================================
-
-Place a file named "custom.qss" in your data directory to override styles:
-  Linux:   ~/.local/share/booru-viewer/custom.qss
-  Windows: %APPDATA%\booru-viewer\custom.qss
-
-The custom stylesheet is appended AFTER the default theme, so your rules
-override the defaults. You can use any Qt stylesheet (QSS) syntax.
-
-WIDGET REFERENCE
-----------------
-
-Main window:        QMainWindow
-Buttons:            QPushButton
-Text inputs:        QLineEdit
-Dropdowns:          QComboBox
-Scroll bars:        QScrollBar
-Labels:             QLabel
-Status bar:         QStatusBar
-Tabs:               QTabWidget, QTabBar
-Lists:              QListWidget
-Menus:              QMenu, QMenuBar
-Tooltips:           QToolTip
-Dialogs:            QDialog
-Splitters:          QSplitter
-Progress bars:      QProgressBar
-Spin boxes:         QSpinBox
-Check boxes:        QCheckBox
-Sliders:            QSlider
-
-EXAMPLES
---------
-
-Change accent color from green to cyan:
-
-    QWidget {
-        color: #00ffff;
-    }
-    QPushButton:pressed {
-        background-color: #009999;
-        color: #000000;
-    }
-    QLineEdit:focus {
-        border-color: #00ffff;
-    }
-
-Bigger font:
-
-    QWidget {
-        font-size: 15px;
-    }
-
-Different background:
-
-    QWidget {
-        background-color: #1a1a2e;
-    }
-
-Custom button style:
-
-    QPushButton {
-        background-color: #222222;
-        color: #00ff00;
-        border: 1px solid #444444;
-        border-radius: 6px;
-        padding: 8px 20px;
-    }
-    QPushButton:hover {
-        background-color: #333333;
-        border-color: #00ff00;
-    }
-
-Wider scrollbar:
-
-    QScrollBar:vertical {
-        width: 14px;
-    }
-    QScrollBar::handle:vertical {
-        min-height: 40px;
-        border-radius: 7px;
-    }
-
-Hide the info overlay on images:
-
-    /* Target the info label in the preview */
-    QLabel[objectName="info-label"] {
-        color: transparent;
-    }
-
-VIDEO PLAYER CONTROLS
----------------------
-
-The video player controls are standard Qt widgets:
-    QPushButton  - Play/Pause, Mute buttons
-    QSlider      - Seek bar, Volume slider
-    QLabel       - Time display
-
-Example - style the seek bar:
-
-    QSlider::groove:horizontal {
-        background: #333333;
-        height: 6px;
-        border-radius: 3px;
-    }
-    QSlider::handle:horizontal {
-        background: #00ff00;
-        width: 14px;
-        height: 14px;
-        margin: -4px 0;
-        border-radius: 7px;
-    }
-    QSlider::sub-page:horizontal {
-        background: #009900;
-        border-radius: 3px;
-    }
-
-DEFAULT COLOR PALETTE
----------------------
-
-These are the defaults you can override:
-
-    Green (accent):     #00ff00
-    Dark green:         #00cc00
-    Dim green:          #009900
-    Background:         #000000
-    Background light:   #111111
-    Background lighter: #1a1a1a
-    Border:             #333333
-
-TIPS
-----
-
-- Restart the app after editing custom.qss
-- Use a text editor to edit QSS - it's similar to CSS
-- If something breaks, just delete custom.qss to reset
-- Your custom styles override defaults, so you only need to include what you change
-- The file is read at startup, not live-reloaded