Why does my NSBox draw a background? (boxType = .primary)









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I realised that suddenly (without me touching the corresponding code) my NSBox has a double visualisation. It is as if the Box has a background color and draws its normal rounded frame inside. I added a small screenshot. The parent control is white, the NSBox is gray with the title "Inputs" (unchanged titlePosition). Under the title is the normal box, adding a 2nd shade of gray.



A NSBox with a double frame



I did not change any of the usual suspects, especially not boxType wich is still set to .primary.



I did work on the Dark Mode (Dark Aqua) but cannot see any change that would cause this behaviour. effectiveAppearance is still Aqua.










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    I realised that suddenly (without me touching the corresponding code) my NSBox has a double visualisation. It is as if the Box has a background color and draws its normal rounded frame inside. I added a small screenshot. The parent control is white, the NSBox is gray with the title "Inputs" (unchanged titlePosition). Under the title is the normal box, adding a 2nd shade of gray.



    A NSBox with a double frame



    I did not change any of the usual suspects, especially not boxType wich is still set to .primary.



    I did work on the Dark Mode (Dark Aqua) but cannot see any change that would cause this behaviour. effectiveAppearance is still Aqua.










    share|improve this question























      up vote
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      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I realised that suddenly (without me touching the corresponding code) my NSBox has a double visualisation. It is as if the Box has a background color and draws its normal rounded frame inside. I added a small screenshot. The parent control is white, the NSBox is gray with the title "Inputs" (unchanged titlePosition). Under the title is the normal box, adding a 2nd shade of gray.



      A NSBox with a double frame



      I did not change any of the usual suspects, especially not boxType wich is still set to .primary.



      I did work on the Dark Mode (Dark Aqua) but cannot see any change that would cause this behaviour. effectiveAppearance is still Aqua.










      share|improve this question













      I realised that suddenly (without me touching the corresponding code) my NSBox has a double visualisation. It is as if the Box has a background color and draws its normal rounded frame inside. I added a small screenshot. The parent control is white, the NSBox is gray with the title "Inputs" (unchanged titlePosition). Under the title is the normal box, adding a 2nd shade of gray.



      A NSBox with a double frame



      I did not change any of the usual suspects, especially not boxType wich is still set to .primary.



      I did work on the Dark Mode (Dark Aqua) but cannot see any change that would cause this behaviour. effectiveAppearance is still Aqua.







      cocoa nsbox






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      asked Nov 9 at 19:37









      Wizard of Kneup

      620625




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          A NSBox with a boxType of .primary always draws a background. That is intended behaviour. Only if the view behind NSBox is white you may not see it. If you want a NSBox without background you must make it boxType .custom and set the background color as required.






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          • Interesting. I didn’t notice before. Are you sure? The background was always white.
            – Wizard of Kneup
            Nov 11 at 20:44










          • Yes, you can reproduce this easily in Interface Builder if you add a .primary NSBox to a .custom NSBox and change the color of the .custom box in the background. Dependent on the .custom box background color the color of the .primary box can fade to invisible white.
            – Marc T.
            Nov 12 at 6:00










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          1 Answer
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          active

          oldest

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          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes








          up vote
          0
          down vote













          A NSBox with a boxType of .primary always draws a background. That is intended behaviour. Only if the view behind NSBox is white you may not see it. If you want a NSBox without background you must make it boxType .custom and set the background color as required.






          share|improve this answer




















          • Interesting. I didn’t notice before. Are you sure? The background was always white.
            – Wizard of Kneup
            Nov 11 at 20:44










          • Yes, you can reproduce this easily in Interface Builder if you add a .primary NSBox to a .custom NSBox and change the color of the .custom box in the background. Dependent on the .custom box background color the color of the .primary box can fade to invisible white.
            – Marc T.
            Nov 12 at 6:00














          up vote
          0
          down vote













          A NSBox with a boxType of .primary always draws a background. That is intended behaviour. Only if the view behind NSBox is white you may not see it. If you want a NSBox without background you must make it boxType .custom and set the background color as required.






          share|improve this answer




















          • Interesting. I didn’t notice before. Are you sure? The background was always white.
            – Wizard of Kneup
            Nov 11 at 20:44










          • Yes, you can reproduce this easily in Interface Builder if you add a .primary NSBox to a .custom NSBox and change the color of the .custom box in the background. Dependent on the .custom box background color the color of the .primary box can fade to invisible white.
            – Marc T.
            Nov 12 at 6:00












          up vote
          0
          down vote










          up vote
          0
          down vote









          A NSBox with a boxType of .primary always draws a background. That is intended behaviour. Only if the view behind NSBox is white you may not see it. If you want a NSBox without background you must make it boxType .custom and set the background color as required.






          share|improve this answer












          A NSBox with a boxType of .primary always draws a background. That is intended behaviour. Only if the view behind NSBox is white you may not see it. If you want a NSBox without background you must make it boxType .custom and set the background color as required.







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 11 at 15:25









          Marc T.

          950513




          950513











          • Interesting. I didn’t notice before. Are you sure? The background was always white.
            – Wizard of Kneup
            Nov 11 at 20:44










          • Yes, you can reproduce this easily in Interface Builder if you add a .primary NSBox to a .custom NSBox and change the color of the .custom box in the background. Dependent on the .custom box background color the color of the .primary box can fade to invisible white.
            – Marc T.
            Nov 12 at 6:00
















          • Interesting. I didn’t notice before. Are you sure? The background was always white.
            – Wizard of Kneup
            Nov 11 at 20:44










          • Yes, you can reproduce this easily in Interface Builder if you add a .primary NSBox to a .custom NSBox and change the color of the .custom box in the background. Dependent on the .custom box background color the color of the .primary box can fade to invisible white.
            – Marc T.
            Nov 12 at 6:00















          Interesting. I didn’t notice before. Are you sure? The background was always white.
          – Wizard of Kneup
          Nov 11 at 20:44




          Interesting. I didn’t notice before. Are you sure? The background was always white.
          – Wizard of Kneup
          Nov 11 at 20:44












          Yes, you can reproduce this easily in Interface Builder if you add a .primary NSBox to a .custom NSBox and change the color of the .custom box in the background. Dependent on the .custom box background color the color of the .primary box can fade to invisible white.
          – Marc T.
          Nov 12 at 6:00




          Yes, you can reproduce this easily in Interface Builder if you add a .primary NSBox to a .custom NSBox and change the color of the .custom box in the background. Dependent on the .custom box background color the color of the .primary box can fade to invisible white.
          – Marc T.
          Nov 12 at 6:00

















           

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