(remixed from Scratch-Conference_Pixels, by youngthinkers) by kinestheticlearning
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It finds pixels with specific RGB values and it changes their transparency (the 'A' value in RGBA) to 20. See the forum discussion that led to redesigned SWITCH TO block. It now accepts list of pixels, too. Yay!!! :-) 

Created October 4, 2019

Last updated January 11, 2022

Published October 7, 2019