; Created in LibreOffice 4.2 with this LibreLogo program
 ; Usage: Put this code into an English language document in LibO Writer,
 ; and click on the Start icon of the View»Toolbars»Logo toolbar.
 
 ; go to a vertex and store its coordinate 
 TO vertex vertices n
 FORWARD n
 z = POSITION
 vertices += [z]
 BACK n
 END
 
 TO star n
 golden_ratio = (1 + SQRT 5)/2
 vertices = []
 HEADING 0
 REPEAT 5 [
     vertex vertices n
     RIGHT 360/10
     vertex vertices n - n / golden_ratio
     RIGHT 360/10
 ]
 FOR i IN vertices [
     POSITION i
     PENDOWN
 ]
 FILL
 PENUP
 END
 
 TO flag name color1 color2 border
 CLEARSCREEN HOME HIDETURTLE
 PICTURE “Flag_of_Europe_%s.svg” % name [
 x = PAGESIZE[0] – PAGESIZE[0]*2/3*2/25
 y = x*2/3
 PENCOLOR “INVISIBLE”
 IF border=1 [
     FILLCOLOR “WHITE” 
     RECTANGLE [PAGESIZE[0], y + PAGESIZE[0]*2/3*2/25]
 ]
 PENSIZE y/100 PENJOINT “MITER” PENDOWN
 FILLCOLOR color1
 IF color1 = 0xffffff [ PENCOLOR “BLACK” ]
 RECTANGLE [x, y]
 PENCOLOR “INVISIBLE”
 FILLCOLOR color2
 REPEAT 12 [
     PENUP 
     HEADING 360/12 * (REPCOUNT - 1)
     FORWARD y*1/3
     star y/18
     HOME
 ]
 ]
 END
 
 flag “bw” 0xffffff 0x000000 0
 flag “bw_with_border” 0xffffff 0x000000 1
 flag “color” 0x003399 0xffcc00 0
 flag “color_with_border” 0x003399 0xffcc00 1
 flag “blue” 0x003399 0xffffff 0
 flag “blue_with_border” 0x003399 0xffffff 1