OTClient - Change the number of slots backpack

[neutral90]

does anyone know how to change the number of slots in OtclientV8 (OTCAcademy)?

I changed this code:

  MiniWindowContents
    padding-right: 0
    layout:
      type: grid
      cell-size: 34 34
      flow: true

to this one:

  MiniWindowContents
    padding-top: 4
    padding-bottom: 4
    padding-right: 0
    padding-left: 8
    layout:
      type: grid
      cell-size: 34 34
      cell-spacing: 2
      flow: true

after this change the backpack stopped opening