diff --git a/beeref/__main__.py b/beeref/__main__.py
index 4899c83..1e8a679 100755
--- a/beeref/__main__.py
+++ b/beeref/__main__.py
@@ -25,8 +25,12 @@
 
 from beeref import constants
 from beeref.assets import BeeAssets
-from beeref.config import CommandlineArgs, BeeSettings, logfile_name
-from beeref.utils import create_palette_from_dict
+from beeref.config import (
+    BeeSettings,
+    CommandlineArgs,
+    BeeStyleSheet,
+    logfile_name,
+)
 from beeref.view import BeeGraphicsView
 
 logger = logging.getLogger(__name__)
@@ -110,8 +114,7 @@ def main():
 
     os.environ["QT_DEBUG_PLUGINS"] = "1"
     app = BeeRefApplication(sys.argv)
-    palette = create_palette_from_dict(constants.COLORS)
-    app.setPalette(palette)
+    app.setStyleSheet(BeeStyleSheet().qss)
     bee = BeeRefMainWindow(app)  # NOQA:F841
 
     signal.signal(signal.SIGINT, handle_sigint)
diff --git a/beeref/config.py b/beeref/config.py
index 9368c33..df2d4d3 100644
--- a/beeref/config.py
+++ b/beeref/config.py
@@ -16,11 +16,16 @@
 """Handling of command line args and Qt settings."""
 
 import argparse
+from functools import lru_cache, cached_property
 import logging
 import logging.config
 import os.path
+import shutil
 
-from PyQt6 import QtCore
+import tinycss2
+import tinycss2.color3
+
+from PyQt6 import QtCore, QtGui
 
 from beeref import constants
 from beeref.logging import qt_message_handler
@@ -241,6 +246,70 @@ def restore_defaults(self):
         settings_events.restore_keyboard_defaults.emit()
 
 
+class BeeStyleSheet:
+    _instance = None
+    DEFAULT_PATH = os.path.join(os.path.dirname(__file__),
+                                'default_stylesheet.qss')
+
+    def __new__(cls, *args, **kwargs):
+        if not cls._instance:
+            cls._instance = super().__new__(cls, *args, **kwargs)
+            cls._instance.on_new()
+        return cls._instance
+
+    def on_new(self):
+        dest =  os.path.join(
+            os.path.dirname(BeeSettings().fileName()),
+            'stylesheet.qss.example')
+        shutil.copy(self.DEFAULT_PATH, dest)
+
+        path = os.path.join(
+            os.path.dirname(BeeSettings().fileName()), 'stylesheet.qss')
+
+        if os.path.exists(path):
+            logger.info(f'Found custom stylesheet: {path}')
+        else:
+            logger.info(f'Using default stylesheet')
+            path = self.DEFAULT_PATH
+
+        with open(path) as f:
+            self.qss = f.read()
+
+    @cached_property
+    def parsed(self):
+        return tinycss2.parse_stylesheet(
+            self.qss, skip_comments=True, skip_whitespace=True)
+
+    def _get_color_from_rule(self, rule, attribute):
+        found = False
+        for dec in rule.content:
+            if found:
+                color = tinycss2.color3.parse_color(dec.serialize())
+                if color:
+                    return QtGui.QColor(
+                        int(color.red * 255),
+                        int(color.green * 255),
+                        int(color.blue * 255),
+                        int(color.alpha * 255))
+            else:
+                if getattr(dec, 'value', None) == attribute:
+                    found = True
+
+    @lru_cache
+    def get_color(self, element, attribute):
+        for rule in self.parsed:
+            for pre in rule.prelude:
+                if getattr(pre, 'value', None) == element:
+                    return self._get_color_from_rule(rule, attribute)
+
+
+def get_stylesheet(create_example=False):
+    """Read custom stylesheet from settings dir if it exists, else read
+    default style sheet from source code.
+    """
+
+
+
 def logfile_name():
     return os.path.join(
         os.path.dirname(BeeSettings().fileName()), f'{constants.APPNAME}.log')
diff --git a/beeref/constants.py b/beeref/constants.py
index 24cbd81..7d0df65 100644
--- a/beeref/constants.py
+++ b/beeref/constants.py
@@ -19,24 +19,4 @@
 WEBSITE = 'https://github.com/rbreu/beeref'
 COPYRIGHT = 'Copyright © 2021-2023 Rebecca Breu'
 
-COLORS = {
-    # Qt:
-    'Active:Base': (60, 60, 60),
-    'Active:Window': (40, 40, 40),
-    'Active:Button': (40, 40, 40),
-    'Active:Text': (200, 200, 200),
-    'Active:HighlightedText': (255, 255, 255),
-    'Active:WindowText': (200, 200, 200),
-    'Active:ButtonText': (200, 200, 200),
-    'Active:Highlight': (83, 167, 165),
-    'Active:Link': (90, 181, 179),
-    'Disabled:Light': (0, 0, 0, 0),
-    'Disabled:Text': (140, 140, 140),
-
-    # BeeRef specific:
-    'Scene:Selection': (116, 234, 231),
-    'Scene:Canvas': (60, 60, 60),
-    'Scene:Text': (200, 200, 200),
-    'Table:AlternativeRow': (70, 70, 70),
-
-}
+DEFAULT_SELECTION_COLOR = (116, 234, 231)
diff --git a/beeref/default_stylesheet.qss b/beeref/default_stylesheet.qss
new file mode 100644
index 0000000..2fe266e
--- /dev/null
+++ b/beeref/default_stylesheet.qss
@@ -0,0 +1,115 @@
+/* This is BeeRef's default stylesheet provided as an example.
+
+Save your own stylesheet as stylesheet.qss
+*/
+
+* {
+    color: rgb(200, 200, 200);
+    background: rgb(50, 50, 50);
+}
+
+QSpinBox::focus,
+QKeySequenceEdit::focus {
+    border: 1px solid rgb(83, 167, 165);
+    border-radius: 3px;
+}
+
+*::item:selected,
+*::item:pressed
+{
+    color: rgb(255, 255, 255);
+    background: rgb(83, 167, 165);
+}
+
+*::item:disabled {
+    color: rgb(140, 140, 140);
+}
+
+QMenu {
+    border: 1px solid rgb(40, 40, 40);
+}
+
+QPushButton {
+    border: 1px solid rgb(140, 140, 140);
+    border-radius: 3px;
+    padding: 3px;
+    background-color: rgb(50, 50, 50);
+}
+
+QPushButton {
+    border: 1px solid rgb(140, 140, 140);
+    border-radius: 3px;
+    padding: 3px;
+    background-color: rgb(60, 60, 60);
+}
+
+QPushButton::hover {
+    background-color: rgb(70, 70, 70);
+}
+
+QPushButton::default {
+    border: 1px solid rgb(83, 167, 165);
+}
+
+QPushButton::pressed {
+    background-color: rgb(50, 50, 50);
+}
+
+QProgressBar {
+    border: 1px solid rgb(40, 40, 40);
+    border-radius: 3px;
+    text-align: center;
+}
+
+QProgressBar::chunk {
+    background-color: rgb(83, 167, 165);
+    border-radius: 3px;
+}
+
+QTableView {
+    alternate-background-color: rgb(60, 60, 60);
+    selection-background-color: rgb(83, 167, 165);
+}
+
+QScrollBar::handle:horizontal,
+QScrollBar::handle:vertical {
+    background: rgb(60, 60, 60);
+    border: 1px solid rgb(40, 40, 40);
+    border-radius: 3px;
+}
+
+QScrollBar::handle:horizontal:hover,
+QScrollBar::handle:vertical:hover {
+    background: rgb(70, 70, 70);
+    border: 1px solid rgb(40, 40, 40);
+    border-radius: 3px;
+}
+
+QScrollBar::handle:horizontal:pressed,
+QScrollBar::handle:vertical:pressed {
+    background: rgb(83, 167, 165);
+    border: 1px solid rgb(40, 40, 40);
+    border-radius: 3px;
+}
+
+/* QScrollBar::add-line:horizontal { */
+/*     border: 1px solid rgb(40, 40, 40); */
+/*     border-radius: 3px; */
+/* } */
+
+
+QGraphicsView {
+    background: rgb(60, 60, 60);
+}
+
+BeeTextItem {
+    color: rgb(200, 200, 200);
+}
+
+BeeSelectionItem {
+    color: rgb(116, 234, 231);
+}
+
+BeeRubberbandItem {
+    color: rgba(116, 234, 231, 0.16);
+}
diff --git a/beeref/fileio/export.py b/beeref/fileio/export.py
index 30febe1..35eef35 100644
--- a/beeref/fileio/export.py
+++ b/beeref/fileio/export.py
@@ -21,6 +21,7 @@
 
 from .errors import BeeFileIOError
 from beeref import constants, widgets
+from beeref.config import BeeStyleSheet
 
 
 logger = logging.getLogger(__name__)
@@ -92,7 +93,9 @@ def render_to_image(self):
         logger.debug(f'Final export margin: {margin}')
 
         image = QtGui.QImage(self.size, QtGui.QImage.Format.Format_RGB32)
-        image.fill(QtGui.QColor(*constants.COLORS['Scene:Canvas']))
+        color = BeeStyleSheet().get_color('QGraphicsView', 'background')
+        if color:
+            image.fill(color)
         painter = QtGui.QPainter(image)
         target_rect = QtCore.QRectF(
             margin,
diff --git a/beeref/items.py b/beeref/items.py
index 207184b..07f1430 100644
--- a/beeref/items.py
+++ b/beeref/items.py
@@ -25,8 +25,7 @@
 from PyQt6.QtCore import Qt
 
 from beeref import commands
-from beeref.config import BeeSettings
-from beeref.constants import COLORS
+from beeref.config import BeeSettings, BeeStyleSheet
 from beeref.selection import SelectableMixin
 
 
@@ -568,7 +567,9 @@ def __init__(self, text=None):
         self.init_selectable()
         self.is_editable = True
         self.edit_mode = False
-        self.setDefaultTextColor(QtGui.QColor(*COLORS['Scene:Text']))
+        color = BeeStyleSheet().get_color('BeeTextItem', 'color')
+        if color:
+            self.setDefaultTextColor(color)
 
     @classmethod
     def create_from_data(cls, **kwargs):
diff --git a/beeref/selection.py b/beeref/selection.py
index a3a72f1..56a7e2a 100644
--- a/beeref/selection.py
+++ b/beeref/selection.py
@@ -15,6 +15,7 @@
 
 """Classes that draw and handle selection stuff for items."""
 
+from functools import cached_property
 import logging
 import math
 
@@ -23,15 +24,13 @@
 from PyQt6.QtWidgets import QGraphicsItem
 
 from beeref.assets import BeeAssets
-from beeref import commands
-from beeref.config import CommandlineArgs
-from beeref.constants import COLORS
+from beeref import commands, constants
+from beeref.config import CommandlineArgs, BeeStyleSheet
 from beeref import utils
 
 
 commandline_args = CommandlineArgs()
 logger = logging.getLogger(__name__)
-SELECT_COLOR = QtGui.QColor(*COLORS['Scene:Selection'])
 
 
 def with_anchor(func):
@@ -217,13 +216,20 @@ def paint_debug(self, painter, option, widget):
             self.draw_debug_shape(
                 painter, self.select_handle_free_center(), 255, 0, 255)
 
+    @cached_property
+    def _select_color(self):
+        color = BeeStyleSheet().get_color('BeeSelectionItem', 'color')
+        if not color:
+            color = QtGui.QColor(*constants.DEFAULT_SELECTION_COLOR)
+        return color
+
     def paint_selectable(self, painter, option, widget):
         self.paint_debug(painter, option, widget)
 
         if not self.has_selection_outline():
             return
 
-        pen = QtGui.QPen(SELECT_COLOR)
+        pen = QtGui.QPen(self._select_color)
         pen.setWidth(self.SELECT_LINE_WIDTH)
         pen.setCosmetic(True)
         painter.setPen(pen)
@@ -685,8 +691,10 @@ class RubberbandItem(BaseItemMixin, QtWidgets.QGraphicsRectItem):
 
     def __init__(self):
         super().__init__()
-        color = QtGui.QColor(SELECT_COLOR)
-        color.setAlpha(40)
+        color = BeeStyleSheet().get_color('BeeRubberbandItem', 'color')
+        if not color:
+            color = QtGui.QColor(*constants.DEFAULT_SELECTION_COLOR)
+            color.setAlpha(40)
         self.setBrush(QtGui.QBrush(color))
         pen = QtGui.QPen(QtGui.QColor(0, 0, 0))
         pen.setWidth(1)
diff --git a/beeref/utils.py b/beeref/utils.py
index 1ff8113..b6f31ca 100644
--- a/beeref/utils.py
+++ b/beeref/utils.py
@@ -18,36 +18,6 @@
 from PyQt6 import QtCore, QtGui
 
 
-def create_palette_from_dict(conf):
-    """Create a palette from a config dictionary. Keys are a string of
-    'ColourGroup:ColorRole' and values are a (r, g, b) tuple. E.g:
-    {
-        'Active:WindowText': (80, 100, 0),
-        ...
-    }
-
-    Colors from the Active group will automatically be applied to the
-    Inactive group as well. Unknown color groups will be ignored.
-    """
-
-    palette = QtGui.QPalette()
-    for key, value in conf.items():
-        group, role = key.split(':')
-        if hasattr(QtGui.QPalette.ColorGroup, group):
-            palette.setColor(
-                getattr(QtGui.QPalette.ColorGroup, group),
-                getattr(QtGui.QPalette.ColorRole, role),
-                QtGui.QColor(*value))
-            if group == 'Active':
-                # Also set the Inactive colour group.
-                palette.setColor(
-                    QtGui.QPalette.ColorGroup.Inactive,
-                    getattr(QtGui.QPalette.ColorRole, role),
-                    QtGui.QColor(*value))
-
-    return palette
-
-
 def get_rect_from_points(point1, point2):
     """Constructs a QRectF from the given QPointF. The points can be *any*
     two opposing corners of the rectangle."""
diff --git a/beeref/view.py b/beeref/view.py
index a1bd242..46ccaee 100644
--- a/beeref/view.py
+++ b/beeref/view.py
@@ -48,9 +48,6 @@ def __init__(self, app, parent=None):
         self.parent = parent
         self.settings = BeeSettings()
         self.welcome_overlay = widgets.welcome_overlay.WelcomeOverlay(self)
-
-        self.setBackgroundBrush(
-            QtGui.QBrush(QtGui.QColor(*constants.COLORS['Scene:Canvas'])))
         self.setRenderHint(QtGui.QPainter.RenderHint.Antialiasing)
         self.setFrameShape(QtWidgets.QFrame.Shape.NoFrame)
 
diff --git a/beeref/widgets/settings.py b/beeref/widgets/settings.py
index 1c3d44f..1087756 100644
--- a/beeref/widgets/settings.py
+++ b/beeref/widgets/settings.py
@@ -184,6 +184,8 @@ class KeyboardShortcutsEditor(QtWidgets.QKeySequenceEdit):
 
     def __init__(self, parent, index):
         super().__init__(parent)
+        #self.setObjectName('QKeySequenceEdit')
+        print('***', self.objectName())
         self.action = actions[index.row()]
         try:
             self.old_value = self.action.get_shortcuts()[index.column() - 2]
@@ -322,13 +324,6 @@ def __init__(self):
         self.setFilterCaseSensitivity(
             QtCore.Qt.CaseSensitivity.CaseInsensitive)
 
-    def data(self, index, role):
-        if (role == QtCore.Qt.ItemDataRole.BackgroundRole
-                and index.row() % 2):
-            return QtGui.QColor(*constants.COLORS['Table:AlternativeRow'])
-        else:
-            return super().data(index, role)
-
     def setData(self, index, value, role, remove_from_other=None):
         result = self.sourceModel().setData(
             self.mapToSource(index),
@@ -352,6 +347,7 @@ def __init__(self, parent):
             1, QtWidgets.QHeaderView.ResizeMode.ResizeToContents)
         self.setSelectionMode(
             QtWidgets.QHeaderView.SelectionMode.SingleSelection)
+        self.setAlternatingRowColors(True)
         settings_events.restore_keyboard_defaults.connect(
             self.on_restore_defaults)
 
diff --git a/beeref/widgets/welcome_overlay.py b/beeref/widgets/welcome_overlay.py
index ec5fc4b..a656a7e 100644
--- a/beeref/widgets/welcome_overlay.py
+++ b/beeref/widgets/welcome_overlay.py
@@ -106,12 +106,14 @@ def __init__(self, parent):
         files_layout.addWidget(self.files_view)
         files_layout.addStretch(50)
         self.files_widget.setLayout(files_layout)
+        self.files_widget.setStyleSheet('background: transparent;')
         self.files_widget.hide()
 
         # Help text
         self.label = QtWidgets.QLabel(self.txt, self)
         self.label.setAlignment(Qt.AlignmentFlag.AlignVCenter
                                 | Qt.AlignmentFlag.AlignCenter)
+        self.label.setStyleSheet('background: transparent;')
         self.layout = QtWidgets.QHBoxLayout()
         self.layout.addStretch(50)
         self.layout.addWidget(self.label)
diff --git a/setup.py b/setup.py
index ddd9ac0..ebc290a 100644
--- a/setup.py
+++ b/setup.py
@@ -13,6 +13,7 @@
         'pyQt6-Qt6>=6.5.0,<=6.6.1',
         'rectangle-packer>=2.0.1,<=2.0.2',
         'exif>=1.3.5,<=1.6.0',
+        'tinycss2==1.2.1',
     ],
     packages=[
         'beeref',