My new configuration

rofi.config

! ------------------------------------------------------------------------------
!                      ROFI Settings
! ------------------------------------------------------------------------------
! General
rofi.font:                DejaVu Sans Mono 9
rofi.fake-transparency:   true
rofi.hide-scrollbar:      true
rofi.bw: 2

! Layout
rofi.width:              30
rofi.column:             4
rofi.location:           0
rofi.lines:              1
rofi.padding:            10
rofi.sidebar-mode:       false
rofi.fullscreen:         false

! ------------------------------------------------------------------------------
! ROFI Color theme
! Copyright: Edgar Talledos
! ------------------------------------------------------------------------------
rofi.color-normal:                   #FFFFFF, #c6c6c6, argb:00000000, #c6c6c6, #282A36
rofi.color-urgent:                   #FFFFFF, #ff81ff, argb:00000000, #ff817f, #282A36
rofi.color-active:                   #FFFFFF, #8ac4ff, argb:00000000, #8ac4ff, #282A36
rofi.color-window:                   #282A36, #c6c6c6
rofi.separator-style:                none

# ! Base16 Solarized Dark
# ! Author: Ethan Schoonover (http://ethanschoonover.com/solarized)

# ! base00: #002b36
# ! base01: #073642
# ! base02: #586e75
# ! base03: #657b83
# ! base04: #839496
# ! base05: #93a1a1
# ! base06: #eee8d5
# ! base07: #fdf6e3
# ! base08: #dc322f
# ! base09: #cb4b16
# ! base0A: #b58900
# ! base0B: #859900
# ! base0C: #2aa198
# ! base0D: #268bd2
# ! base0E: #6c71c4
# ! base0F: #d33682l

# ! Enable the extended coloring options
# rofi.color-enabled: true

# ! Property Name     BG       Border   Separator
# # rofi.color-window:  #073642, #073642, #002b36
# rofi.color-window:  #073642, #859900, #002b36

# ! Property Name     BG       FG       BG-alt   Head-BG  Head-FG
# rofi.color-normal:  #073642, #93a1a1, #073642, #073642, #fdf6e3
# rofi.color-active:  #073642, #268bd2, #073642, #073642, #268bd2
# rofi.color-urgent:  #073642, #dc322f, #073642, #073642, #dc322f

! Set the desired separator style
rofi.separator-style: none