Observations to see

Referring to
  See 5.0
1-The line of effects looks very dark
      To give him a little gray
2-when placing horizontal 2deck
     -The decks are very small
3-as in vertical 4deck
       -The decks are very small
4-when using external library
    - you could put the larger deck
    - like the vertical 2
5-all the most perfect thanks rekordbox
    Excellent thanks