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Task/Colour-bars-Display/FreeBASIC/colour-bars-display.freebasic

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+' FB 1.05.0 Win64
+
+' Draw the color bars on an 80 x 25 console using the system palette of 16 colors
+' i.e. 5 columns per color
+Width 80, 25
+Shell "cls"
+Locate ,, 0  '' turn cursor off
+For clr As UInteger = 0 To 15
+  Color 0, clr
+  For row As Integer = 1 to 25
+    For col As UInteger = 1 To 5
+      Locate row, clr * 5 + 1
+      Print Space(5);
+    Next col
+  Next row
+Next clr
+
+Sleep
+' restore default settings
+Locate ,, 1 '' turn cursor on
+Color 7, 0  '' white text on black background