diff --git a/src/ria_toolkit_oss/annotations/__init__.py b/src/ria_toolkit_oss/annotations/__init__.py
index ebb3d10..1542dcf 100644
--- a/src/ria_toolkit_oss/annotations/__init__.py
+++ b/src/ria_toolkit_oss/annotations/__init__.py
@@ -1,4 +1,3 @@
-
 """
 The annotations package contains tools and utilities for creating, managing, and processing annotations.
 
diff --git a/src/ria_toolkit_oss/annotations/threshold_qualifier.py b/src/ria_toolkit_oss/annotations/threshold_qualifier.py
index 338f13c..1d23ef6 100644
--- a/src/ria_toolkit_oss/annotations/threshold_qualifier.py
+++ b/src/ria_toolkit_oss/annotations/threshold_qualifier.py
@@ -167,7 +167,10 @@ def _estimate_spectral_bounds(signal_segment: np.ndarray, sample_rate: float) ->
     else:
         runs = _find_ranges(sig_indices, max_gap=max(1, spectral_smooth_bins // 2))
         peak_idx = int(np.argmax(smoothed_fft))
-        lo_idx, hi_idx = min(runs, key=lambda run: 0 if run[0] <= peak_idx <= run[1] else min(abs(run[0] - peak_idx), abs(run[1] - peak_idx)))
+        lo_idx, hi_idx = min(
+            runs,
+            key=lambda run: 0 if run[0] <= peak_idx <= run[1] else min(abs(run[0] - peak_idx), abs(run[1] - peak_idx)),
+        )
 
         # Prevent extremely narrow tone boxes from collapsing to just a few bins.
         min_total_bw_hz = 20_000.0
diff --git a/src/ria_toolkit_oss/datatypes/datasets/radio_dataset.py b/src/ria_toolkit_oss/datatypes/datasets/radio_dataset.py
index cf3fd23..7a70589 100644
--- a/src/ria_toolkit_oss/datatypes/datasets/radio_dataset.py
+++ b/src/ria_toolkit_oss/datatypes/datasets/radio_dataset.py
@@ -956,8 +956,10 @@ def get_result_sizes(  # noqa: C901  # TODO: Simplify function
                 # Check that each class that will be augmented does not already suffice target_size
                 for cls_name, target_size_value in zip(classes_to_augment, target_size):
                     if class_sizes[cls_name] >= target_size_value:
-                        raise ValueError(f"""target_size of {target_size_value} is already sufficed for current size of
-                            {class_sizes[cls_name]} for class: {cls_name}""")
+                        raise ValueError(
+                            f"""target_size of {target_size_value} is already sufficed for current size of
+                            {class_sizes[cls_name]} for class: {cls_name}"""
+                        )
 
                 for index, class_name in enumerate(classes_to_augment):
                     result_sizes[class_name] = target_size[index]
diff --git a/src/ria_toolkit_oss/io/recording.py b/src/ria_toolkit_oss/io/recording.py
index 0234e11..f56012f 100644
--- a/src/ria_toolkit_oss/io/recording.py
+++ b/src/ria_toolkit_oss/io/recording.py
@@ -136,9 +136,9 @@ def from_npy(file: os.PathLike | str, legacy: bool = False) -> Recording:
             annotations = []
         except ModuleNotFoundError:
             # File was pickled with utils.data.Annotation — remap to ria_toolkit_oss
-            import pickle
             import sys
             import types
+
             import ria_toolkit_oss.datatypes.annotation as _ann_mod
 
             utils_shim = types.ModuleType("utils")
diff --git a/src/ria_toolkit_oss/sdr/blade.py b/src/ria_toolkit_oss/sdr/blade.py
index 576a91c..c8e6f3f 100644
--- a/src/ria_toolkit_oss/sdr/blade.py
+++ b/src/ria_toolkit_oss/sdr/blade.py
@@ -474,8 +474,10 @@ class Blade(SDR):
 
             if gain_mode == "relative":
                 if gain > 0:
-                    raise SDRParameterError("When gain_mode = 'relative', gain must be < 0. This sets \
-                            the gain relative to the maximum possible gain.")
+                    raise SDRParameterError(
+                        "When gain_mode = 'relative', gain must be < 0. This sets \
+                            the gain relative to the maximum possible gain."
+                    )
                 else:
                     abs_gain = rx_gain_max + gain
             else:
@@ -548,8 +550,10 @@ class Blade(SDR):
 
         if gain_mode == "relative":
             if gain > 0:
-                raise SDRParameterError("When gain_mode = 'relative', gain must be < 0. This sets\
-                          the gain relative to the maximum possible gain.")
+                raise SDRParameterError(
+                    "When gain_mode = 'relative', gain must be < 0. This sets\
+                          the gain relative to the maximum possible gain."
+                )
             else:
                 abs_gain = tx_gain_max + gain
         else:
diff --git a/src/ria_toolkit_oss/sdr/hackrf.py b/src/ria_toolkit_oss/sdr/hackrf.py
index 79e00a7..06b49a7 100644
--- a/src/ria_toolkit_oss/sdr/hackrf.py
+++ b/src/ria_toolkit_oss/sdr/hackrf.py
@@ -172,8 +172,10 @@ class HackRF(SDR):
         tx_gain_max = 47
         if gain_mode == "relative":
             if gain > 0:
-                raise SDRParameterError("When gain_mode = 'relative', gain must be < 0. This \
-                        sets the gain relative to the maximum possible gain.")
+                raise SDRParameterError(
+                    "When gain_mode = 'relative', gain must be < 0. This \
+                        sets the gain relative to the maximum possible gain."
+                )
             else:
                 abs_gain = tx_gain_max + gain
         else:
diff --git a/src/ria_toolkit_oss/sdr/pluto.py b/src/ria_toolkit_oss/sdr/pluto.py
index 701198a..47af8df 100644
--- a/src/ria_toolkit_oss/sdr/pluto.py
+++ b/src/ria_toolkit_oss/sdr/pluto.py
@@ -274,16 +274,20 @@ class Pluto(SDR):
                     data = [self._convert_tx_samples(samples), self._convert_tx_samples(samples)]
                 else:
                     if len(recording) > 2:
-                        warnings.warn("More recordings were provided than channels in the Pluto. \
-                            Only the first two recordings will be used")
+                        warnings.warn(
+                            "More recordings were provided than channels in the Pluto. \
+                            Only the first two recordings will be used"
+                        )
                     sample0 = self._convert_tx_samples(recording.data[0])
                     sample1 = self._convert_tx_samples(recording.data[1])
                     data = [sample0, sample1]
 
         elif isinstance(recording, list):
             if len(recording) > 2:
-                warnings.warn("More recordings were provided than channels in the Pluto. \
-                    Only the first two recordings will be used")
+                warnings.warn(
+                    "More recordings were provided than channels in the Pluto. \
+                    Only the first two recordings will be used"
+                )
 
             if isinstance(recording[0], np.ndarray):
                 data = [self._convert_tx_samples(recording[0]), self._convert_tx_samples(recording[1])]
@@ -423,8 +427,10 @@ class Pluto(SDR):
 
             if gain_mode == "relative":
                 if gain > 0:
-                    raise SDRParameterError("When gain_mode = 'relative', gain must be < 0. This sets \
-                            the gain relative to the maximum possible gain.")
+                    raise SDRParameterError(
+                        "When gain_mode = 'relative', gain must be < 0. This sets \
+                            the gain relative to the maximum possible gain."
+                    )
                 else:
                     abs_gain = rx_gain_max + gain
             else:
@@ -534,8 +540,10 @@ class Pluto(SDR):
 
         if gain_mode == "relative":
             if gain > 0:
-                raise SDRParameterError("When gain_mode = 'relative', gain must be < 0. This sets\
-                          the gain relative to the maximum possible gain.")
+                raise SDRParameterError(
+                    "When gain_mode = 'relative', gain must be < 0. This sets\
+                          the gain relative to the maximum possible gain."
+                )
             else:
                 abs_gain = tx_gain_max + gain
         else:
diff --git a/src/ria_toolkit_oss/sdr/rtlsdr.py b/src/ria_toolkit_oss/sdr/rtlsdr.py
index bae677a..d49ab6e 100644
--- a/src/ria_toolkit_oss/sdr/rtlsdr.py
+++ b/src/ria_toolkit_oss/sdr/rtlsdr.py
@@ -131,15 +131,19 @@ class RTLSDR(SDR):
 
                     if gain_mode == "relative":
                         if gain > 0:
-                            raise SDRParameterError("When gain_mode = 'relative', gain must be < 0. This sets\
-                                    the gain relative to the maximum possible gain.")
+                            raise SDRParameterError(
+                                "When gain_mode = 'relative', gain must be < 0. This sets\
+                                    the gain relative to the maximum possible gain."
+                            )
                         target_gain = max_gain + gain
                     else:
                         target_gain = gain
 
                     if target_gain < min_gain or target_gain > max_gain:
-                        print(f"Requested gain {target_gain} dB out of range;\
-                                clamping to valid span {min_gain}-{max_gain} dB.")
+                        print(
+                            f"Requested gain {target_gain} dB out of range;\
+                                clamping to valid span {min_gain}-{max_gain} dB."
+                        )
                         target_gain = min(max(target_gain, min_gain), max_gain)
 
                     target_gain = min(available_gains, key=lambda g: abs(g - target_gain))
diff --git a/src/ria_toolkit_oss/sdr/thinkrf.py b/src/ria_toolkit_oss/sdr/thinkrf.py
index adc25ff..7d108ab 100644
--- a/src/ria_toolkit_oss/sdr/thinkrf.py
+++ b/src/ria_toolkit_oss/sdr/thinkrf.py
@@ -392,8 +392,10 @@ class ThinkRF(SDR):
         actual_sample_rate = self.BASE_SAMPLE_RATE / decimation
 
         if abs(actual_sample_rate - requested_sample_rate) > 1e3:  # More than 1 kHz difference
-            print(f"ThinkRF: Requested {requested_sample_rate/1e6:.2f} MS/s → \
-                    Using decimation={decimation} ({actual_sample_rate/1e6:.2f} MS/s)")
+            print(
+                f"ThinkRF: Requested {requested_sample_rate/1e6:.2f} MS/s → \
+                    Using decimation={decimation} ({actual_sample_rate/1e6:.2f} MS/s)"
+            )
 
         return decimation, actual_sample_rate
 
diff --git a/src/ria_toolkit_oss/sdr/usrp.py b/src/ria_toolkit_oss/sdr/usrp.py
index 70bbc46..f458378 100644
--- a/src/ria_toolkit_oss/sdr/usrp.py
+++ b/src/ria_toolkit_oss/sdr/usrp.py
@@ -148,8 +148,10 @@ class USRP(SDR):
             gain_range = self.usrp.get_rx_gain_range()
             if gain_mode == "relative":
                 if gain > 0:
-                    raise SDRParameterError("When gain_mode = 'relative', gain must be < 0. This sets\
-                            the gain relative to the maximum possible gain.")
+                    raise SDRParameterError(
+                        "When gain_mode = 'relative', gain must be < 0. This sets\
+                            the gain relative to the maximum possible gain."
+                    )
                 else:
                     # set gain relative to max
                     abs_gain = gain_range.stop() + gain
@@ -354,8 +356,10 @@ class USRP(SDR):
         gain_range = self.usrp.get_tx_gain_range()
         if gain_mode == "relative":
             if gain > 0:
-                raise SDRParameterError("When gain_mode = 'relative', gain must be < 0. This sets\
-                          the gain relative to the maximum possible gain.")
+                raise SDRParameterError(
+                    "When gain_mode = 'relative', gain must be < 0. This sets\
+                          the gain relative to the maximum possible gain."
+                )
             else:
                 # set gain relative to max
                 abs_gain = gain_range.stop() + gain
diff --git a/src/ria_toolkit_oss/signal/block_generator/basic/add.py b/src/ria_toolkit_oss/signal/block_generator/basic/add.py
index fe59f16..9830f7b 100644
--- a/src/ria_toolkit_oss/signal/block_generator/basic/add.py
+++ b/src/ria_toolkit_oss/signal/block_generator/basic/add.py
@@ -37,8 +37,10 @@ class Add(RecordableBlock, ProcessBlock):
 
         samples = block.get_samples(num_samples)
         if len(samples) != num_samples:
-            raise ValueError(f"Block {self.__class__.__name__} requested {num_samples} \
-                    from block {block.__class__.__name__} but got {len(samples)}.")
+            raise ValueError(
+                f"Block {self.__class__.__name__} requested {num_samples} \
+                    from block {block.__class__.__name__} but got {len(samples)}."
+            )
 
         return samples
 
diff --git a/src/ria_toolkit_oss/signal/block_generator/frequency_translation/upconversion.py b/src/ria_toolkit_oss/signal/block_generator/frequency_translation/upconversion.py
index c0272c3..36b7117 100644
--- a/src/ria_toolkit_oss/signal/block_generator/frequency_translation/upconversion.py
+++ b/src/ria_toolkit_oss/signal/block_generator/frequency_translation/upconversion.py
@@ -1,4 +1,5 @@
 import numpy as np
+
 from ria_toolkit_oss.signal.block_generator.block import Block
 from ria_toolkit_oss.signal.block_generator.data_types import DataType
 
diff --git a/src/ria_toolkit_oss/signal/block_generator/process_block.py b/src/ria_toolkit_oss/signal/block_generator/process_block.py
index 98eccd1..4b618cd 100644
--- a/src/ria_toolkit_oss/signal/block_generator/process_block.py
+++ b/src/ria_toolkit_oss/signal/block_generator/process_block.py
@@ -23,9 +23,11 @@ class ProcessBlock(Block, ABC):
             )
 
         elif not all(isinstance(item, Block) for item in input):
-            raise ValueError(f"Invalid input to block '{self.__class__.__name__}'. \
+            raise ValueError(
+                f"Invalid input to block '{self.__class__.__name__}'. \
                              Expected a list of Block objects but got \
-                             {'[' + ',' .join(f'{item.__class__.__name__}({repr(item)})' for item in input) + ']'}")
+                             {'[' + ',' .join(f'{item.__class__.__name__}({repr(item)})' for item in input) + ']'}"
+            )
 
         elif len(input) != len(self.input_type):
             raise ValueError(
diff --git a/src/ria_toolkit_oss/signal/block_generator/recordable_block.py b/src/ria_toolkit_oss/signal/block_generator/recordable_block.py
index 28f2f2b..4b63648 100644
--- a/src/ria_toolkit_oss/signal/block_generator/recordable_block.py
+++ b/src/ria_toolkit_oss/signal/block_generator/recordable_block.py
@@ -20,8 +20,10 @@ class RecordableBlock(Block, Recordable):
         :raises ValueError: If the number of samples is incorrect."""
         samples = self.get_samples(num_samples)
         if len(samples) != num_samples:
-            raise ValueError(f"Error in block {self.__class__.__name__} record(). \
-                    Requested {num_samples} samples but got {len(samples)}")
+            raise ValueError(
+                f"Error in block {self.__class__.__name__} record(). \
+                    Requested {num_samples} samples but got {len(samples)}"
+            )
         metadata = self._get_metadata()
         return Recording(data=samples, metadata=metadata)
 
diff --git a/src/ria_toolkit_oss/signal/block_generator/source/recording_source.py b/src/ria_toolkit_oss/signal/block_generator/source/recording_source.py
index 8a1e642..1b7795a 100644
--- a/src/ria_toolkit_oss/signal/block_generator/source/recording_source.py
+++ b/src/ria_toolkit_oss/signal/block_generator/source/recording_source.py
@@ -39,7 +39,9 @@ class RecordingSource(SourceBlock, RecordableBlock):
         :raises ValueError: If num_samples is greater than the recording length.
         """
         if num_samples - 1 >= self.recording.data.shape[1]:
-            raise ValueError(f"{num_samples} samples requested from recording source with \
-                    {self.recording.data.shape[1]} samples available.")
+            raise ValueError(
+                f"{num_samples} samples requested from recording source with \
+                    {self.recording.data.shape[1]} samples available."
+            )
 
         return self.recording.data[0, 0:num_samples]
diff --git a/src/ria_toolkit_oss/transforms/iq_augmentations.py b/src/ria_toolkit_oss/transforms/iq_augmentations.py
index 106f151..ca859a0 100644
--- a/src/ria_toolkit_oss/transforms/iq_augmentations.py
+++ b/src/ria_toolkit_oss/transforms/iq_augmentations.py
@@ -610,8 +610,10 @@ def cut_out(  # noqa: C901  # TODO: Simplify function
         raise ValueError("signal must be CxN complex.")
 
     if fill_type not in {"zeros", "ones", "low-snr", "avg-snr", "high-snr"}:
-        raise UserWarning("""fill_type must be "zeros", "ones", "low-snr", "avg-snr", or "high-snr",
-            "ones" has been selected by default""")
+        raise UserWarning(
+            """fill_type must be "zeros", "ones", "low-snr", "avg-snr", or "high-snr",
+            "ones" has been selected by default"""
+        )
 
     if max_section_size < 1 or max_section_size >= n:
         raise ValueError("max_section_size must be at least 1 and must be less than the length of signal.")
diff --git a/src/ria_toolkit_oss/view/view_signal.py b/src/ria_toolkit_oss/view/view_signal.py
index 86cfbe7..ded3c8c 100644
--- a/src/ria_toolkit_oss/view/view_signal.py
+++ b/src/ria_toolkit_oss/view/view_signal.py
@@ -4,7 +4,6 @@ import textwrap
 from typing import Optional
 
 import matplotlib.pyplot as plt
-from matplotlib.patches import Patch
 import numpy as np
 from matplotlib import gridspec
 from matplotlib.patches import Patch
@@ -14,7 +13,12 @@ from scipy.signal import spectrogram
 from scipy.signal.windows import hann
 
 from ria_toolkit_oss.datatypes.recording import Recording
-from ria_toolkit_oss.view.tools import COLORS, decimate, extract_metadata_fields, set_path
+from ria_toolkit_oss.view.tools import (
+    COLORS,
+    decimate,
+    extract_metadata_fields,
+    set_path,
+)
 
 
 def get_fft_size(plot_length):
@@ -59,13 +63,6 @@ def view_annotations(
     annotations = recording.annotations
 
     # 2. Setup Color Mapping
-    available_colors = [
-        COLORS.get("magenta", "magenta"),
-        COLORS.get("accent", "cyan"),
-        COLORS.get("light", "white"),
-        "lime",
-    ]
-
     palette = ["#2196F3", "#9C27B0", "#64B5F6", "#7B1FA2", "#5C6BC0", "#CE93D8", "#1565C0", "#7C4DFF"]
     unique_labels = sorted(list(set(ann.label for ann in annotations if ann.label)))
     label_to_color = {label: palette[i % len(palette)] for i, label in enumerate(unique_labels)}
diff --git a/src/ria_toolkit_oss/view/view_signal_simple.py b/src/ria_toolkit_oss/view/view_signal_simple.py
index d97452e..1b847ab 100644
--- a/src/ria_toolkit_oss/view/view_signal_simple.py
+++ b/src/ria_toolkit_oss/view/view_signal_simple.py
@@ -13,7 +13,12 @@ from scipy.fft import fft, fftshift
 from scipy.signal.windows import hann
 
 from ria_toolkit_oss.datatypes.recording import Recording
-from ria_toolkit_oss.view.tools import COLORS, decimate, extract_metadata_fields, set_path
+from ria_toolkit_oss.view.tools import (
+    COLORS,
+    decimate,
+    extract_metadata_fields,
+    set_path,
+)
 
 
 def _add_annotations(annotations, compact_mode, show_labels, sample_rate_hz, center_freq_hz, ax2):
diff --git a/src/ria_toolkit_oss_cli/ria_toolkit_oss/annotate.py b/src/ria_toolkit_oss_cli/ria_toolkit_oss/annotate.py
index cdfabb5..4a8d6ac 100644
--- a/src/ria_toolkit_oss_cli/ria_toolkit_oss/annotate.py
+++ b/src/ria_toolkit_oss_cli/ria_toolkit_oss/annotate.py
@@ -14,7 +14,10 @@ from ria_toolkit_oss.annotations import (
 from ria_toolkit_oss.datatypes import Annotation
 from ria_toolkit_oss.datatypes.recording import Recording
 from ria_toolkit_oss.io import load_recording, to_blue, to_npy, to_sigmf, to_wav
-from ria_toolkit_oss_cli.ria_toolkit_oss.common import format_frequency, format_sample_count
+from ria_toolkit_oss_cli.ria_toolkit_oss.common import (
+    format_frequency,
+    format_sample_count,
+)
 
 
 def normalize_sigmf_path(filepath):
@@ -658,7 +661,12 @@ def cusum(input, label, min_duration, window_size, tolerance, annotation_type, o
 @click.argument("input", type=click.Path(exists=True))
 @click.option("--threshold", type=float, required=True, help="Threshold (0.0-1.0, fraction of max magnitude)")
 @click.option("--label", type=str, default=None, help="Annotation label")
-@click.option("--window-size", type=int, default=None, help="Smoothing window size in samples (default: 1ms at recording sample rate)")
+@click.option(
+    "--window-size",
+    type=int,
+    default=None,
+    help="Smoothing window size in samples (default: 1ms at recording sample rate)",
+)
 @click.option(
     "--type",
     "annotation_type",
diff --git a/src/ria_toolkit_oss_cli/ria_toolkit_oss/commands.py b/src/ria_toolkit_oss_cli/ria_toolkit_oss/commands.py
index 53cf37f..b545366 100644
--- a/src/ria_toolkit_oss_cli/ria_toolkit_oss/commands.py
+++ b/src/ria_toolkit_oss_cli/ria_toolkit_oss/commands.py
@@ -18,7 +18,7 @@ from .init import init
 from .split import split
 from .transform import transform
 from .transmit import transmit
-from .view import viewe 
+from .view import viewe
 
 # Aliases
 synth = generate
diff --git a/src/ria_toolkit_oss_cli/ria_toolkit_oss/view.py b/src/ria_toolkit_oss_cli/ria_toolkit_oss/view.py
index b1748f6..0a7fa62 100644
--- a/src/ria_toolkit_oss_cli/ria_toolkit_oss/view.py
+++ b/src/ria_toolkit_oss_cli/ria_toolkit_oss/view.py
@@ -34,13 +34,12 @@ VISUALIZATION_TYPES = {
             "spines",
         ],
     },
-        "annotations": {
+    "annotations": {
         "function": view_annotations,
         "description": "Annotation-focused spectrogram view",
         "options": ["channel", "dark"],
     },
     "channels": {"function": view_channels, "description": "Multi-channel IQ and spectrogram view", "options": []},
-    "annotations": {"function": view_annotations, "description": "Annotated spectrogram view", "options": ["channel", "dark"]},
 }