old_contents: columns = [
     ["area_cvx", "Convex area [px]"],
     ["area_msd", "Measured area [px]"],
     ["area_ratio", "Convex to measured area ratio"],
     # This is the convex area per definition
     ["area_um", "Area [µm²]"],
     ["aspect", "Aspect ratio of bounding box"],
     ["bright_avg", "Brightness average within contour [a.u.]"],
     ["bright_sd", "Brightness SD  within contour [a.u.]"],
     ["circ", "Circularity"],
     ["deform", "Deformation"],
     ["emodulus", "Young's Modulus [kPa]"],
     # What is the difference between fc0_max and fc1_max?
     ["fc0_max", "Fluorescence intensity maximum [a.u.]"],
     ["fc0_width", "Fluorescence peak width [µs]"],
     # Is this the area of the first or the highest peak?
     ["fl1_area", "FL-1 area of peak [a.u.]"],
     # Set to nan if there is only one peak?
     ["fl1_dist", "FL-1 distance between two first peaks [µs]"],
     ["fl1_max", "FL-1 maximum [a.u.]"],
     ["fl1_npeaks", "FL-1 number of peaks"],
     # Is this the position of the first or the highest peak?
     ["fl1_pos", "FL-1 position of peak [µs]"],
     # Is this the wifth of the first or the highest peak?
     ["fl1_width", "FL-1 width [µs]"],
     ["fl2_area", "FL-2 area of peak [a.u.]"],
     ["fl2_dist", "FL-2 distance between two first peaks [µs]"],
     ["fl2_max", "FL-2 maximum [a.u.]"],
     ["fl2_npeaks", "FL-2 number of peaks"],
     ["fl2_pos", "FL-2 position of peak [µs]"],
     ["fl2_width", "FL-2 width [µs]"],
     ["fl3_area", "FL-3 area of peak [a.u.]"],
     ["fl3_dist", "FL-3 distance between two first peaks [µs]"],
     ["fl3_max", "FL-3 maximum [a.u.]"],
     ["fl3_npeaks", "FL-3 number of peaks"],
     ["fl3_pos", "FL-3 position of peak [µs]"],
     ["fl3_width", "FL-3 width [µs]"],
     ["frame", "Video frame number"],
     # What is Inertia ratio exactly m20/m02?
     ["inert_ratio", "Inertia ratio sqrt(m20/m02)"],
     ["inert_ratio_raw", "Raw inertia ratio sqrt(m20/m02)"],
     ["index", "Event index"],
     ["ncells", "Number of cells in image"],
     ["pc1", "Principal component 1"],
     ["pc2", "Principal component 2"],
     ["pos_x", "Position along channel axis [µm]"],
     ["pos_y", "Position lateral in channel [µm]"],
     ["size_x", "Bounding box size x [µm]"],
     ["size_y", "Bounding box size y [µm]"],
     ["time", "Event time [s]"],
     ["volume", "Volume [µm³]"],
     ]
  
  
new_contents: columns = [
     ["area_cvx", "Convex area [px]"],
     ["area_msd", "Measured area [px]"],
     ["area_ratio", "Convex to measured area ratio"],
     # This is the convex area per definition
     ["area_um", "Area [µm²]"],
     ["aspect", "Aspect ratio of bounding box"],
     ["bright_avg", "Brightness average within contour [a.u.]"],
     ["bright_sd", "Brightness SD  within contour [a.u.]"],
     ["circ", "Circularity"],
     ["deform", "Deformation"],
     ["emodulus", "Young's Modulus [kPa]"],
     # Is this the area of the first or the highest peak?
     ["fl1_area", "FL-1 area of peak [a.u.]"],
     # Set to nan if there is only one peak?
     ["fl1_dist", "FL-1 distance between two first peaks [µs]"],
     ["fl1_max", "FL-1 maximum [a.u.]"],
     ["fl1_npeaks", "FL-1 number of peaks"],
     # Is this the position of the first or the highest peak?
     ["fl1_pos", "FL-1 position of peak [µs]"],
     # Is this the wifth of the first or the highest peak?
     ["fl1_width", "FL-1 width [µs]"],
     ["fl2_area", "FL-2 area of peak [a.u.]"],
     ["fl2_dist", "FL-2 distance between two first peaks [µs]"],
     ["fl2_max", "FL-2 maximum [a.u.]"],
     ["fl2_npeaks", "FL-2 number of peaks"],
     ["fl2_pos", "FL-2 position of peak [µs]"],
     ["fl2_width", "FL-2 width [µs]"],
     ["fl3_area", "FL-3 area of peak [a.u.]"],
     ["fl3_dist", "FL-3 distance between two first peaks [µs]"],
     ["fl3_max", "FL-3 maximum [a.u.]"],
     ["fl3_npeaks", "FL-3 number of peaks"],
     ["fl3_pos", "FL-3 position of peak [µs]"],
     ["fl3_width", "FL-3 width [µs]"],
     ["frame", "Video frame number"],
     # What is Inertia ratio exactly m20/m02?
     ["inert_ratio", "Inertia ratio sqrt(m20/m02)"],
     ["inert_ratio_raw", "Raw inertia ratio sqrt(m20/m02)"],
     ["index", "Event index"],
     ["ncells", "Number of cells in image"],
     ["pc1", "Principal component 1"],
     ["pc2", "Principal component 2"],
     ["pos_x", "Position along channel axis [µm]"],
     ["pos_y", "Position lateral in channel [µm]"],
     ["size_x", "Bounding box size x [µm]"],
     ["size_y", "Bounding box size y [µm]"],
     ["time", "Event time [s]"],
     ["volume", "Volume [µm³]"],
     ]
  
  
subject: remove fc0 (#5)