Add active color for port and wider active signals

Closes #234 (closed)

b_asic/scheduler_gui/_preferences.py

 from qtpy.QtGui import QColor
 
-from b_asic._preferences import (
-    EXECUTION_TIME_COLOR,
-    LATENCY_COLOR,
-    SIGNAL_COLOR,
-)
+from b_asic._preferences import EXECUTION_TIME_COLOR, LATENCY_COLOR, SIGNAL_COLOR
 
 SIGNAL_INACTIVE = QColor(*SIGNAL_COLOR)
 SIGNAL_ACTIVE = QColor(0, 207, 181)
 SIGNAL_WIDTH = 0.03
+SIGNAL_WIDTH_ACTIVE = 0.05
 
 OPERATION_LATENCY_INACTIVE = QColor(*LATENCY_COLOR)
 OPERATION_LATENCY_ACTIVE = QColor(0, 207, 181)
@@ -16,8 +13,6 @@ OPERATION_EXECUTION_TIME_INACTIVE = QColor(*EXECUTION_TIME_COLOR)
 OPERATION_EXECUTION_TIME_ACTIVE = QColor(*EXECUTION_TIME_COLOR)
 
 OPERATION_HEIGHT = 0.75
-OPERATION_GAP = (
-    1 - OPERATION_HEIGHT
-)  # TODO: For now, should really fix the bug
+OPERATION_GAP = 1 - OPERATION_HEIGHT  # TODO: For now, should really fix the bug
 
 SCHEDULE_INDENT = 0.2