flair theme with conky 1.10.8

.conkyrc

-- vim:set expandtab ts=2 sw=2 syntax=lua:
conky.config = {
  background = false,
  use_xft = true,
  xftalpha = 0.8,
  update_interval = 1,
  own_window = true,
  own_window_class = 'Conky',
  own_window_type = 'desktop',
  own_window_hints = 'undecorated,below,sticky,skip_taskbar,skip_pager',
  own_window_transparent = true,
  own_window_argb_visual = true,
  own_window_argb_value = 0,
  double_buffer = true,
  draw_shades = false,
  draw_outline = false,
  draw_borders = true,
  draw_graph_borders = false,
  stippled_borders = 0,
  border_width = 1,
  default_color = '#000',
  default_shade_color = '#000',
  default_outline_color = '#000',
  alignment = 'top_left',
  minimum_height = 600,
  minimum_width = 600,
  maximum_width = 900,
  gap_x = 235,
  gap_y = 70,
  no_buffers = true,
  uppercase = false,
  cpu_avg_samples = 2,
  net_avg_samples = 2,
  short_units = true,
  text_buffer_size = 2048,
  use_spacer = 'none',
  override_utf8_locale = true,
  lua_load = '~/.conky/script.lua',
  lua_draw_hook_post = 'main'
}

conky.text = [[
  ${alignr 270}${voffset 25}${font GeosansLight:size=25}Today
  ${alignr 270}${voffset 10}${font GeosansLight:light:size=70}${time %I:%M}
  ${alignc 75}${voffset -55}${font GeosansLight:size=17}${time %A, %d %B}
  ${goto 383}${voffset -187}${font GeosansLight:size=25}Systems${font GeosansLight:size=22}
  ${goto 411}${voffset 15}${font GeosansLight:size=15}${cpu cpu0}% / 100%
  ${goto 411}${voffset 6}$mem / $memmax${font GeosansLight:size=15}
  ${goto 411}${voffset 6}${fs_used /} / ${fs_size /}
  ${goto 411}${voffset 6}${if_up wlan0}${upspeed wlan0} kb/s / ${totalup wlan0}${endif}${if_up enp1s0}${upspeed enp1s0} kb/s / ${totalup enp1s0}${endif}${if_up ppp0}${upspeed ppp0} kb/s / ${totalup ppp0}${endif}
  ${goto 411}${voffset 6}${if_up wlan0}${downspeed wlan0} kb/s / ${totaldown wlan0}${endif}${if_up enp1s0}${downspeed enp1s0} kb/s / ${totaldown enp1s0}${endif}${if_up ppp0}${downspeed ppp0} kb/s / ${totaldown ppp0}${endif}

  ${goto 383}${voffset -167}${font Dingytwo:size=17}O$font 
  ${goto 383}${voffset 3}${font Dingytwo:size=17}7$font 
  ${goto 383}${voffset 3}${font Dingytwo:size=17}J$font 
  ${goto 383}${voffset 3}${font Dingytwo:size=17}5$font 
  ${goto 383}${voffset 3}${font Dingytwo:size=17}4$font 
]]

script.lua

require 'cairo'

function conky_main()
  if conky_window == nil then
    return
  end

  -- parameters --
  line_width = 2
  line_cap = CAIRO_LINE_CAP_BUTT
  red,green,blue,alpha = 0,0,0,0.6
  startx = 356
  starty = 32
  endx = 356
  endy = 232

  -- draw line --
  local cs = cairo_xlib_surface_create(conky_window.display,
                                       conky_window.drawable,
                                       conky_window.visual,
                                       conky_window.width,
                                       conky_window.height)

  cr = cairo_create(cs)

  cairo_set_line_width (cr, line_width)
  cairo_set_line_cap  (cr, line_cap)
  cairo_set_source_rgba (cr, red, green, blue, alpha)
  cairo_move_to (cr, startx, starty)
  cairo_line_to(cr, endx, endy)
  cairo_stroke(cr)

  -- destroy --
  cairo_destroy(cr)
  cairo_surface_destroy(cs)
  cr=nil
end