diff --git a/src/nqrduck_spectrometer/base_spectrometer_model.py b/src/nqrduck_spectrometer/base_spectrometer_model.py
index 11fa178..8e5e1dd 100644
--- a/src/nqrduck_spectrometer/base_spectrometer_model.py
+++ b/src/nqrduck_spectrometer/base_spectrometer_model.py
@@ -88,7 +88,7 @@ class BaseSpectrometerModel(ModuleModel):
             for option in self.options:
                 if option.name == name:
                     return option
-            raise ValueError("Option with name %s not found" % name)
+            raise ValueError(f"Option with name {name} not found")
 
     def __init__(self, module):
         """Initializes the spectrometer model.
@@ -127,7 +127,7 @@ class BaseSpectrometerModel(ModuleModel):
             for setting in self.settings[category]:
                 if setting.name == name:
                     return setting
-        raise ValueError("Setting with name %s not found" % name)
+        raise ValueError(f"Setting with name {name} not found")
 
     def add_pulse_parameter_option(
         self, name: str, pulse_parameter_class: PulseParameter
diff --git a/src/nqrduck_spectrometer/base_spectrometer_view.py b/src/nqrduck_spectrometer/base_spectrometer_view.py
index 9c88908..52b523c 100644
--- a/src/nqrduck_spectrometer/base_spectrometer_view.py
+++ b/src/nqrduck_spectrometer/base_spectrometer_view.py
@@ -38,7 +38,7 @@ class BaseSpectrometerView(ModuleView):
         grid = self._ui_form.gridLayout
         self._ui_form.verticalLayout.removeItem(self._ui_form.gridLayout)
         # Add name of the spectrometer to the view
-        label = QLabel("%s Settings:" % self.module.model.toolbar_name)
+        label = QLabel(f"{self.module.model.toolbar_name} Settings:")
         label.setStyleSheet("font-weight: bold;")
         self._ui_form.verticalLayout.setSpacing(5)
         self._ui_form.verticalLayout.addWidget(label)
@@ -47,7 +47,7 @@ class BaseSpectrometerView(ModuleView):
         for category_count, category in enumerate(self.module.model.settings.keys()):
             logger.debug("Adding settings for category: %s", category)
             category_layout = QVBoxLayout()
-            category_label = QLabel("%s:" % category)
+            category_label = QLabel(f"{category}:" % category)
             category_label.setStyleSheet("font-weight: bold;")
             row = category_count // 2
             column = category_count % 2
diff --git a/src/nqrduck_spectrometer/pulseparameters.py b/src/nqrduck_spectrometer/pulseparameters.py
index 47d40a4..d259e3d 100644
--- a/src/nqrduck_spectrometer/pulseparameters.py
+++ b/src/nqrduck_spectrometer/pulseparameters.py
@@ -141,7 +141,7 @@ class FunctionOption(Option):
         for function in self.functions:
             if function.name == name:
                 return function
-        raise ValueError("Function with name %s not found" % name)
+        raise ValueError(f"Function with name {name} not found")
 
     def to_json(self):
         """Returns a json representation of the option.
@@ -172,8 +172,13 @@ class FunctionOption(Option):
 
 
 class TXRectFunction(RectFunction):
+    """TX Rectangular function.
+    
+    Adds the pixmap of the function to the class.
+    """
 
     def __init__(self) -> None:
+        """Initializes the TX Rectangular function."""
         super().__init__()
         self.name = "Rectangular"
 
@@ -182,8 +187,12 @@ class TXRectFunction(RectFunction):
         return PulseParamters.TXRect()
 
 class TXSincFunction(SincFunction):
-
+    """TX Sinc function.
+    
+    Adds the pixmap of the function to the class.
+    """
     def __init__(self) -> None:
+        """Initializes the TX Sinc function."""
         super().__init__()
         self.name = "Sinc"
 
@@ -193,8 +202,12 @@ class TXSincFunction(SincFunction):
 
 
 class TXGaussianFunction(GaussianFunction):
-
+    """TX Gaussian function.
+    
+    Adds the pixmap of the function to the class.
+    """
     def __init__(self) -> None:
+        """Initializes the TX Gaussian function."""
         super().__init__()
         self.name = "Gaussian"
 
@@ -204,8 +217,12 @@ class TXGaussianFunction(GaussianFunction):
 
 
 class TXCustomFunction(CustomFunction):
-
+    """TX Custom function.
+    
+    Adds the pixmap of the function to the class.
+    """
     def __init__(self) -> None:
+        """Initializes the TX Custom function."""
         super().__init__()
         self.name = "Custom"