Keywords: Simultaneous contrast2.svg en Simultaneous Contrast - Luminance 2013-09-09 01 05 58 own László Németh <gallery> Image Black and white squares svg Black and white squares Image Simultaneous Contrast svg Simultaneous Contrast </gallery> ; Created in LibreOffice 4 1 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 PICTURE simultaneous_contrast svg PENUP FILLCOLOR BLACK SQUARE 100 RIGHT 90 FORWARD 100 FILLCOLOR WHITE SQUARE 100 FILLCOLOR GRAY SQUARE 40 BACK 100 SQUARE 40 cc-zero Uploaded with UploadWizard Contrast illusions Images with LibreLogo source code Created with LibreOffice Valid SVG |