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•   Define the usage of ALV component ALV_COMPONENT in the properties for your view. Since we need the object model for our changes, choose the With Controller Access variant (component interface).
• Go to view ALV_V -> Methods tab ->Create GET_COLOR-Write the code to get the layout with different designs->Call that method in WDDOINIT. 
• Steps in GET_COLOR method. 
1. Getting the instance of ALV Component and Interface Controller. 
2. Change the layout design. 

METHOD get_color .

  "Create instance for ALV Component usage.
  DATA lo_cmp_usage TYPE REF TO if_wd_component_usage.

  lo_cmp_usage =   wd_this->wd_cpuse_alv_component( ).
  IF lo_cmp_usage->has_active_component( ) IS INITIAL.
    lo_cmp_usage->create_component( ).
  ENDIF.
  "Get config model
  DATA lo_interfacecontroller TYPE REF TO iwci_salv_wd_table .
  lo_interfacecontroller =   wd_this->wd_cpifc_alv_component( ).
  DATA lr_config_table TYPE REF TO cl_salv_wd_config_table.
  lr_config_table = lo_interfacecontroller->get_model( ).

  "Layout design
  lr_config_table->if_salv_wd_table_settings~set_design( value = cl_wd_table=>e_design-transparent ).
ENDMETHOD.