old_contents: from PyQt5.QtGui import QFont
  from cadnano.gui.views.styles import THE_FONT, THE_FONT_SIZE
  from cadnano.gui.views.styles import BLUE_FILL, BLUE_STROKE
  from cadnano.gui.views.styles import GRAY_FILL, GRAY_STROKE
  
  
  # Slice Sizing
  SLICE_HELIX_RADIUS = 15.
  SLICE_HELIX_STROKE_WIDTH = 0.5
  SLICE_HELIX_MOD_HILIGHT_WIDTH = 1
  
  # Z values
  # bottom
  ZSLICEHELIX = 40
  ZSELECTION = 50
  ZDESELECTOR = 60
  ZWEDGEGIZMO = 100
  ZPXIGROUP = 150
  ZPARTITEM = 200
  # top
  
  # Part apperance
  SLICE_FILL = "#ffffff"
  
  DEFAULT_PEN_WIDTH = 0  # cosmetic
  DEFAULT_ALPHA = 2
  SELECTED_COLOR = '#5a8bff'
  SELECTED_PEN_WIDTH = 2
  SELECTED_ALPHA = 0
  
  
  SLICE_NUM_FONT = QFont(THE_FONT, 10, QFont.Bold)
  USE_TEXT_COLOR = "#ffffff"
  SLICE_TEXT_COLOR = "#000000"
  
  ACTIVE_STROKE = '#cccc00'
  ACTIVE_GRID_DOT_COLOR = '#0000ff'
  DEFAULT_GRID_DOT_COLOR = '#0000ff'
  #ACTIVE_GRID_DOT_COLOR = '#ff3333'  # item color
  
  VHI_HINT_ACTIVE_STROKE = BLUE_STROKE
  VHI_HINT_INACTIVE_STROKE = '#cccccc'
  
new_contents: from PyQt5.QtGui import QFont
  
  from cadnano.gui.views.styles import BLUE_STROKE, THE_FONT
  
  
  # Slice Sizing
  SLICE_HELIX_RADIUS = 15.
  SLICE_HELIX_STROKE_WIDTH = 0.5
  SLICE_HELIX_MOD_HILIGHT_WIDTH = 1
  
  # Z values
  # bottom
  ZSLICEHELIX = 40
  ZSELECTION = 50
  ZDESELECTOR = 60
  ZWEDGEGIZMO = 100
  ZPXIGROUP = 150
  ZPARTITEM = 200
  # top
  
  # Part appearance
  SLICE_FILL = "#ffffff"
  
  DEFAULT_PEN_WIDTH = 0  # cosmetic
  DEFAULT_ALPHA = 2
  SELECTED_COLOR = '#5a8bff'
  SELECTED_PEN_WIDTH = 2
  SELECTED_ALPHA = 0
  
  
  SLICE_NUM_FONT = QFont(THE_FONT, 10, QFont.Bold)
  USE_TEXT_COLOR = "#ffffff"
  SLICE_TEXT_COLOR = "#000000"
  
  ACTIVE_STROKE = '#cccc00'
  ACTIVE_GRID_DOT_COLOR = '#0000ff'
  DEFAULT_GRID_DOT_COLOR = '#0000ff'
  #ACTIVE_GRID_DOT_COLOR = '#ff3333'  # item color
  
  VHI_HINT_ACTIVE_STROKE = BLUE_STROKE
  VHI_HINT_INACTIVE_STROKE = '#cccccc'
  
subject: Fix imports in SliceStyles