diff --git a/.github/workflows/documentation.yaml b/.github/workflows/documentation.yaml
index f49d05c..6ff4f06 100644
--- a/.github/workflows/documentation.yaml
+++ b/.github/workflows/documentation.yaml
@@ -22,7 +22,7 @@ jobs:
           cache: true
           python-version: '3.10'
       - name: Install dependencies
-        run: pdm sync -dG doc -dG pyside6
+        run: pdm sync -dG doc -dG qt5
       - name: Install GraphViz
         run: sudo apt-get install -y graphviz
       - name: Sphinx build
diff --git a/docs/source/_templates/custom-class-template.rst b/docs/source/_templates/custom-class-template.rst
index 999ac41..9c4a67f 100644
--- a/docs/source/_templates/custom-class-template.rst
+++ b/docs/source/_templates/custom-class-template.rst
@@ -10,3 +10,4 @@
 .. autoclass:: {{ objname }}
    :members:
    :undoc-members:
+   :show-inheritance:
diff --git a/docs/source/conf.py b/docs/source/conf.py
index de20a00..bb3b533 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -59,7 +59,7 @@
 
 # -- Settings for automatic API generation -----------------------------------
 autodoc_mock_imports = ["PySpin"]
-autodoc_class_signature = 'mixed'  # 'mixed', 'separated'
+autodoc_class_signature = 'separated'  # 'mixed', 'separated'
 autodoc_member_order = 'groupwise'  # 'alphabetical', 'groupwise', 'bysource'
 autodoc_inherit_docstrings = False
 autodoc_typehints = 'description'  # 'description', 'signature', 'none', 'both'
@@ -73,7 +73,7 @@
 napoleon_numpy_docstring = True
 napoleon_include_init_with_doc = False
 napoleon_include_private_with_doc = False
-napoleon_include_special_with_doc = False
+napoleon_include_special_with_doc = True
 napoleon_use_admonition_for_examples = True
 napoleon_use_admonition_for_notes = True
 napoleon_use_admonition_for_references = True
diff --git a/docs/source/dev_guide.rst b/docs/source/dev_guide.rst
index 7e37e87..10a1025 100644
--- a/docs/source/dev_guide.rst
+++ b/docs/source/dev_guide.rst
@@ -39,7 +39,7 @@ Checking and formatting of code
 
    pdm run ruff format
    pdm run ruff check --fix
-   pdm run mypy
+   pdm run mypy --package iblqt $(qtpy mypy-args)
 
 
 Building the documentation
@@ -55,4 +55,4 @@ Building the package
 
 .. code-block:: bash
 
-   pdm build
\ No newline at end of file
+   pdm build
diff --git a/iblqt/__init__.py b/iblqt/__init__.py
index b794fd4..b241dc2 100644
--- a/iblqt/__init__.py
+++ b/iblqt/__init__.py
@@ -1 +1,3 @@
+"""A collection of extensions and enhancements to the Qt framework."""
+
 __version__ = '0.1.0'
diff --git a/iblqt/core.py b/iblqt/core.py
index 5c2694d..82c28e7 100644
--- a/iblqt/core.py
+++ b/iblqt/core.py
@@ -1,3 +1,5 @@
+"""Non-GUI functionality, including event handling, data types, and data management."""
+
 import logging
 
 from pyqtgraph import ColorMap, colormap  # type: ignore
@@ -16,6 +18,7 @@
 import pandas as pd
 from pandas import DataFrame
 import numpy as np
+import numpy.typing as npt
 
 log = logging.getLogger(__name__)
 
@@ -45,7 +48,18 @@ def __init__(
         super().__init__(parent, *args, **kwargs)
         self._dataFrame: DataFrame = DataFrame() if dataFrame is None else dataFrame
 
-    def setDataFrame(self, dataFrame: DataFrame) -> None:
+    def getDataFrame(self) -> DataFrame:
+        """
+        Get the underlying DataFrame.
+
+        Returns
+        -------
+        DataFrame
+            The DataFrame represented by the model.
+        """
+        return self._dataFrame
+
+    def setDataFrame(self, dataFrame: DataFrame):
         """
         Set a new DataFrame.
 
@@ -58,18 +72,8 @@ def setDataFrame(self, dataFrame: DataFrame) -> None:
         self._dataFrame = dataFrame.copy()
         self.endResetModel()
 
-    def dataFrame(self) -> DataFrame:
-        """
-        Get the underlying DataFrame.
-
-        Returns
-        -------
-        DataFrame
-            The DataFrame represented by the model.
-        """
-        return self._dataFrame
-
-    dataFrame = Property(DataFrame, fget=dataFrame, fset=setDataFrame)
+    dataFrame = Property(DataFrame, fget=getDataFrame, fset=setDataFrame)  # type: Property
+    """The DataFrame containing the models data."""
 
     def headerData(
         self,
@@ -182,11 +186,17 @@ def sort(self, column: int, order: Qt.SortOrder = Qt.SortOrder.AscendingOrder):
 
 
 class ColoredDataFrameTableModel(DataFrameTableModel):
-    colormapChanged = Signal(str)
-    alphaChanged = Signal(int)
+    """Extension of DataFrameTableModel providing color-mapped numerical data."""
+
+    colormapChanged = Signal(str)  # type: Signal
+    """Emitted when the colormap has been changed."""
+
+    alphaChanged = Signal(int)  # type: Signal
+    """Emitted when the alpha value has been changed."""
+
     _normData = DataFrame()
-    _background: np.ndarray
-    _foreground: np.ndarray
+    _background: npt.NDArray[np.int_]
+    _foreground: npt.NDArray[np.int_]
     _cmap: ColorMap
     _alpha: int
 
@@ -218,8 +228,19 @@ def __init__(
         self.modelReset.connect(self._normalizeData)
         self.dataChanged.connect(self._normalizeData)
         self.colormapChanged.connect(self._defineColors)
-        self.setColormap(colormap)
-        self.setAlpha(alpha)
+        self.setProperty('colormap', colormap)
+        self.setProperty('alpha', alpha)
+
+    def getColormap(self) -> str:
+        """
+        Return the name of the current colormap.
+
+        Returns
+        -------
+        str
+            The name of the current colormap
+        """
+        return self._cmap.name
 
     @Slot(str)
     def setColormap(self, name: str):
@@ -238,11 +259,19 @@ def setColormap(self, name: str):
                 return
         log.warning(f'No such colormap: "{name}"')
 
-    def colormap(self) -> str:
-        """Return the name of the current colormap."""
-        return self._cmap.name
+    colormap = Property(str, fget=getColormap, fset=setColormap, notify=colormapChanged)  # type: Property
+    """The name of the colormap."""
+
+    def getAlpha(self) -> int:
+        """
+        Return the alpha value of the colormap.
 
-    colormap = Property(str, fget=colormap, fset=setColormap)
+        Returns
+        -------
+        int
+            The alpha value of the colormap.
+        """
+        return self._alpha
 
     @Slot(int)
     def setAlpha(self, alpha: int = 255):
@@ -258,11 +287,8 @@ def setAlpha(self, alpha: int = 255):
         self.alphaChanged.emit(self._alpha)
         self.layoutChanged.emit()
 
-    def alpha(self) -> int:
-        """Return the alpha value of the colormap."""
-        return self._alpha
-
-    alpha = Property(int, fget=alpha, fset=setAlpha)
+    alpha = Property(int, fget=getAlpha, fset=setAlpha, notify=alphaChanged)  # type: Property
+    """The alpha value of the colormap."""
 
     def _normalizeData(self) -> None:
         """Normalize the Data for mapping to a colormap."""
@@ -334,9 +360,10 @@ def data(
             row = self._dataFrame.index[index.row()]
             col = index.column()
             if role == Qt.BackgroundRole:
-                val = self._background[row][col]
-                return QColor.fromRgb(*val, self._alpha)
+                rgb = self._background[row][col]
+                return QVariant(QColor.fromRgb(*rgb, self._alpha))
             if role == Qt.ForegroundRole:
-                val = self._foreground[row][col]
-                return QColor('black' if (val * self._alpha) < 32512 else 'white')
+                lum: int = self._foreground[row][col]
+                color = QColor('black' if (lum * self._alpha) < 32512 else 'white')
+                return QVariant(color)
         return super().data(index, role)
diff --git a/iblqt/widgets.py b/iblqt/widgets.py
index c86a557..0820721 100644
--- a/iblqt/widgets.py
+++ b/iblqt/widgets.py
@@ -1,37 +1,24 @@
-"""A collection of reusable Qt widgets designed for general use in PyQt or PySide applications."""
+"""Graphical user interface components."""
 
 from qtpy.QtWidgets import QPushButton
 from qtpy.QtCore import Signal, Slot, Property
 
 
 class StatefulButton(QPushButton):
-    """A QPushButton that maintains an active/inactive state.
-
-    Parameters
-    ----------
-    *args : tuple
-        Positional arguments passed to QPushButton constructor.
-    active : bool, optional
-        Initial state of the button (default is False).
-    **kwargs : dict
-        Keyword arguments passed to QPushButton constructor.
-
-    Attributes
-    ----------
-    clickedWhileActive : Signal
-        Emitted when the button is clicked while it is in the active state.
-    clickedWhileInactive : Signal
-        Emitted when the button is clicked while it is in the inactive state.
-    stateChanged : Signal
-        Emitted when the button's state has changed. The signal carries the new state.
-    """
-
-    clickedWhileActive = Signal(name='clickedWhileActive')
-    clickedWhileInactive = Signal(name='clickedWhileInactive')
-    stateChanged = Signal(bool, name='stateChanged')
+    """A QPushButton that maintains an active/inactive state."""
+
+    clickedWhileActive = Signal()  # type: Signal
+    """Emitted when the button is clicked while it is in the active state."""
+
+    clickedWhileInactive = Signal()  # type: Signal
+    """Emitted when the button is clicked while it is in the inactive state."""
+
+    stateChanged = Signal(bool)  # type: Signal
+    """Emitted when the button's state has changed. The signal carries the new state 
+    (True for active, False for inactive)."""
 
     def __init__(self, *args, active: bool = False, **kwargs):
-        """Initialize the StateButton with the specified active state.
+        """Initialize the StatefulButton with the specified active state.
 
         Parameters
         ----------
@@ -46,8 +33,7 @@ def __init__(self, *args, active: bool = False, **kwargs):
         self._isActive = active
         self.clicked.connect(self._onClick)
 
-    @Property(bool)
-    def active(self) -> bool:
+    def getActive(self) -> bool:
         """Get the active state of the button.
 
         Returns
@@ -58,20 +44,23 @@ def active(self) -> bool:
         return self._isActive
 
     @Slot(bool)
-    def setActive(self, active: bool):
+    def setActive(self, value: bool):
         """Set the active state of the button.
 
         Emits `stateChanged` if the state has changed.
 
         Parameters
         ----------
-        active : bool
+        value : bool
             The new active state of the button.
         """
-        if self._isActive != active:
-            self._isActive = active
+        if self._isActive != value:
+            self._isActive = value
             self.stateChanged.emit(self._isActive)
 
+    active = Property(bool, fget=getActive, fset=setActive, notify=stateChanged)  # type: Property
+    """The active state of the button."""
+
     @Slot()
     def _onClick(self):
         """Handle the button click event.
diff --git a/pdm.lock b/pdm.lock
index 60d87a2..738b8b2 100644
--- a/pdm.lock
+++ b/pdm.lock
@@ -2,10 +2,10 @@
 # It is not intended for manual editing.
 
 [metadata]
-groups = ["default", "dev", "doc", "lint", "pyside6", "qt5", "qt6", "test", "typing"]
+groups = ["default", "dev", "doc", "lint", "qt5", "test", "typing"]
 strategy = ["inherit_metadata"]
 lock_version = "4.5.0"
-content_hash = "sha256:865e1471972a10676124b0fd495fac13c7d679ce0ad104229f989a8585f6b638"
+content_hash = "sha256:18f133abf85014323a8c2685eb0f77290ccb6915d3a4c1d7fbf4bd68fbc35e18"
 
 [[metadata.targets]]
 requires_python = "==3.10.*"
@@ -480,53 +480,15 @@ files = [
 ]
 
 [[package]]
-name = "pyqt6"
-version = "6.7.1"
-requires_python = ">=3.8"
-summary = "Python bindings for the Qt cross platform application toolkit"
-groups = ["qt6"]
-marker = "python_version == \"3.10\""
-dependencies = [
-    "PyQt6-Qt6<6.8.0,>=6.7.0",
-    "PyQt6-sip<14,>=13.8",
-]
-files = [
-    {file = "PyQt6-6.7.1-1-cp38-abi3-manylinux_2_28_aarch64.whl", hash = "sha256:7f397f4b38b23b5588eb2c0933510deb953d96b1f0323a916c4839c2a66ccccc"},
-    {file = "PyQt6-6.7.1-1-cp38-abi3-manylinux_2_28_x86_64.whl", hash = "sha256:c2f202b7941aa74e5c7e1463a6f27d9131dbc1e6cabe85571d7364f5b3de7397"},
-    {file = "PyQt6-6.7.1-cp38-abi3-macosx_11_0_universal2.whl", hash = "sha256:f053378e3aef6248fa612c8afddda17f942fb63f9fe8a9aeb2a6b6b4cbb0eba9"},
-    {file = "PyQt6-6.7.1-cp38-abi3-manylinux_2_28_aarch64.whl", hash = "sha256:0adb7914c732ad1dee46d9cec838a98cb2b11bc38cc3b7b36fbd8701ae64bf47"},
-    {file = "PyQt6-6.7.1-cp38-abi3-manylinux_2_28_x86_64.whl", hash = "sha256:2d771fa0981514cb1ee937633dfa64f14caa902707d9afffab66677f3a73e3da"},
-    {file = "PyQt6-6.7.1-cp38-abi3-win_amd64.whl", hash = "sha256:fa3954698233fe286a8afc477b84d8517f0788eb46b74da69d3ccc0170d3714c"},
-    {file = "PyQt6-6.7.1.tar.gz", hash = "sha256:3672a82ccd3a62e99ab200a13903421e2928e399fda25ced98d140313ad59cb9"},
-]
-
-[[package]]
-name = "pyqt6-qt6"
-version = "6.7.3"
-summary = "The subset of a Qt installation needed by PyQt6."
-groups = ["qt6"]
-marker = "python_version == \"3.10\""
-files = [
-    {file = "PyQt6_Qt6-6.7.3-py3-none-macosx_10_14_x86_64.whl", hash = "sha256:f517a93b6b1a814d4aa6587adc312e812ebaf4d70415bb15cfb44268c5ad3f5f"},
-    {file = "PyQt6_Qt6-6.7.3-py3-none-macosx_11_0_arm64.whl", hash = "sha256:8551732984fb36a5f4f3db51eafc4e8e6caf18617365830285306f2db17a94c2"},
-    {file = "PyQt6_Qt6-6.7.3-py3-none-manylinux_2_28_aarch64.whl", hash = "sha256:50c7482bcdcf2bb78af257fb10ed8b582f8daf91d829782393bc50ac5a0a900c"},
-    {file = "PyQt6_Qt6-6.7.3-py3-none-manylinux_2_28_x86_64.whl", hash = "sha256:cb525fdd393332de60887953029276a44de480fce1d785251ae639580f5e7246"},
-    {file = "PyQt6_Qt6-6.7.3-py3-none-win_amd64.whl", hash = "sha256:36ea0892b8caeb983af3f285f45fb8dfbb93cfd972439f4e01b7efb2868f6230"},
-]
-
-[[package]]
-name = "pyqt6-sip"
-version = "13.8.0"
-requires_python = ">=3.8"
-summary = "The sip module support for PyQt6"
-groups = ["qt6"]
+name = "pyqt5-stubs"
+version = "5.15.6.0"
+requires_python = ">= 3.5"
+summary = "PEP561 stub files for the PyQt5 framework"
+groups = ["qt5"]
 marker = "python_version == \"3.10\""
 files = [
-    {file = "PyQt6_sip-13.8.0-cp310-cp310-macosx_10_9_universal2.whl", hash = "sha256:cedd554c643e54c4c2e12b5874781a87441a1b405acf3650a4a2e1df42aae231"},
-    {file = "PyQt6_sip-13.8.0-cp310-cp310-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:f57275b5af774529f9838adcfb58869ba3ebdaf805daea113bb0697a96a3f3cb"},
-    {file = "PyQt6_sip-13.8.0-cp310-cp310-manylinux_2_5_x86_64.manylinux1_x86_64.whl", hash = "sha256:835ed22eab977f75fd77e60d4ff308a1fa794b1d0c04849311f36d2a080cdf3b"},
-    {file = "PyQt6_sip-13.8.0-cp310-cp310-win_amd64.whl", hash = "sha256:d8b22a6850917c68ce83fc152a8b606ecb2efaaeed35be53110468885d6cdd9d"},
-    {file = "PyQt6_sip-13.8.0.tar.gz", hash = "sha256:2f74cf3d6d9cab5152bd9f49d570b2dfb87553ebb5c4919abfde27f5b9fd69d4"},
+    {file = "PyQt5-stubs-5.15.6.0.tar.gz", hash = "sha256:91270ac23ebf38a1dc04cd97aa852cd08af82dc839100e5395af1447e3e99707"},
+    {file = "PyQt5_stubs-5.15.6.0-py3-none-any.whl", hash = "sha256:7fb8177c72489a8911f021b7bd7c33f12c87f6dba92dcef3fdcdb5d9400f0f3f"},
 ]
 
 [[package]]
@@ -544,60 +506,6 @@ files = [
     {file = "pyqtgraph-0.13.7.tar.gz", hash = "sha256:64f84f1935c6996d0e09b1ee66fe478a7771e3ca6f3aaa05f00f6e068321d9e3"},
 ]
 
-[[package]]
-name = "pyside6"
-version = "6.7.3"
-requires_python = "<3.13,>=3.9"
-summary = "Python bindings for the Qt cross-platform application and UI framework"
-groups = ["pyside6"]
-marker = "python_version == \"3.10\""
-dependencies = [
-    "PySide6-Addons==6.7.3",
-    "PySide6-Essentials==6.7.3",
-    "shiboken6==6.7.3",
-]
-files = [
-    {file = "PySide6-6.7.3-cp39-abi3-macosx_11_0_universal2.whl", hash = "sha256:1c21c4cf6cdd29bd13bbd7a2514756a19188eab992b92af03e64bf06a9b33d5b"},
-    {file = "PySide6-6.7.3-cp39-abi3-manylinux_2_28_x86_64.whl", hash = "sha256:a21480cc746358f70768975fcc452322f03b3c3622625bfb1743b40ce4e24beb"},
-    {file = "PySide6-6.7.3-cp39-abi3-manylinux_2_31_aarch64.whl", hash = "sha256:c2a1313296c0088d1c3d231d0a8ccf0eda52b84139d0c4065fded76e4a4378f4"},
-    {file = "PySide6-6.7.3-cp39-abi3-win_amd64.whl", hash = "sha256:3ac8dcb4ca82d276e319f89dd99098b01061f255a2b9104216504aece5e0faf8"},
-]
-
-[[package]]
-name = "pyside6-addons"
-version = "6.7.3"
-requires_python = "<3.13,>=3.9"
-summary = "Python bindings for the Qt cross-platform application and UI framework (Addons)"
-groups = ["pyside6"]
-marker = "python_version == \"3.10\""
-dependencies = [
-    "PySide6-Essentials==6.7.3",
-    "shiboken6==6.7.3",
-]
-files = [
-    {file = "PySide6_Addons-6.7.3-cp39-abi3-macosx_11_0_universal2.whl", hash = "sha256:3174cb3a373c09c98740b452e8e8f4945d64cfa18ed8d43964111d570f0dc647"},
-    {file = "PySide6_Addons-6.7.3-cp39-abi3-manylinux_2_28_x86_64.whl", hash = "sha256:bde1eb03dbffd089b50cd445847aaecaf4056cea84c49ea592d00f84f247251e"},
-    {file = "PySide6_Addons-6.7.3-cp39-abi3-manylinux_2_31_aarch64.whl", hash = "sha256:5a9e0df31345fe6caea677d916ea48b53ba86f95cc6499c57f89e392447ad6db"},
-    {file = "PySide6_Addons-6.7.3-cp39-abi3-win_amd64.whl", hash = "sha256:d8a19c2b2446407724c81c33ebf3217eaabd092f0f72da8130c17079e04a7813"},
-]
-
-[[package]]
-name = "pyside6-essentials"
-version = "6.7.3"
-requires_python = "<3.13,>=3.9"
-summary = "Python bindings for the Qt cross-platform application and UI framework (Essentials)"
-groups = ["pyside6"]
-marker = "python_version == \"3.10\""
-dependencies = [
-    "shiboken6==6.7.3",
-]
-files = [
-    {file = "PySide6_Essentials-6.7.3-cp39-abi3-macosx_11_0_universal2.whl", hash = "sha256:f9e08a4e9e7dc7b5ab72fde20abce8c97df7af1b802d9743f098f577dfe1f649"},
-    {file = "PySide6_Essentials-6.7.3-cp39-abi3-manylinux_2_28_x86_64.whl", hash = "sha256:cda6fd26aead48f32e57f044d18aa75dc39265b49d7957f515ce7ac3989e7029"},
-    {file = "PySide6_Essentials-6.7.3-cp39-abi3-manylinux_2_31_aarch64.whl", hash = "sha256:acdde06b74f26e7d26b4ae1461081b32a6cb17fcaa2a580050b5e0f0f12236c9"},
-    {file = "PySide6_Essentials-6.7.3-cp39-abi3-win_amd64.whl", hash = "sha256:f0950fcdcbcd4f2443336dc6a5fe692172adc225f876839583503ded0ab2f2a7"},
-]
-
 [[package]]
 name = "pytest"
 version = "8.3.3"
@@ -741,20 +649,6 @@ files = [
     {file = "ruff-0.6.8.tar.gz", hash = "sha256:a5bf44b1aa0adaf6d9d20f86162b34f7c593bfedabc51239953e446aefc8ce18"},
 ]
 
-[[package]]
-name = "shiboken6"
-version = "6.7.3"
-requires_python = "<3.13,>=3.9"
-summary = "Python/C++ bindings helper module"
-groups = ["pyside6"]
-marker = "python_version == \"3.10\""
-files = [
-    {file = "shiboken6-6.7.3-cp39-abi3-macosx_11_0_universal2.whl", hash = "sha256:285fe3cf79be3135fe1ad1e2b9ff6db3a48698887425af6aa6ed7a05a9abc3d6"},
-    {file = "shiboken6-6.7.3-cp39-abi3-manylinux_2_28_x86_64.whl", hash = "sha256:f0852e5781de78be5b13c140ec4c7fb9734e2aaf2986eb2d6a224363e03efccc"},
-    {file = "shiboken6-6.7.3-cp39-abi3-manylinux_2_31_aarch64.whl", hash = "sha256:f0dd635178e64a45be2f84c9f33dd79ac30328da87f834f21a0baf69ae210e6e"},
-    {file = "shiboken6-6.7.3-cp39-abi3-win_amd64.whl", hash = "sha256:5f29325dfa86fde0274240f1f38e421303749d3174ce3ada178715b5f4719db9"},
-]
-
 [[package]]
 name = "six"
 version = "1.16.0"
diff --git a/pyproject.toml b/pyproject.toml
index bf5f47b..4bd9e97 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -46,12 +46,7 @@ typing = [
 ]
 qt5 = [
     "PyQt5>=5.15.11",
-]
-qt6 = [
-    "PyQt6>=6.7.1",
-]
-pyside6 = [
-    "PySide6>=6.7.3",
+    "PyQt5-stubs>=5.15.6.0",
 ]
 
 [tool.ruff]
@@ -64,7 +59,7 @@ quote-style = "single"
 extend-select = ["D"]
 
 [tool.ruff.lint.per-file-ignores]
-"src/*.py" = ["D"]
+"tests/**/*.py" = ["D"] # pydocstyle
 
 [tool.ruff.lint.pydocstyle]
 convention = "numpy"