Programming a 2-Million-Color "Color Chart" (C++ Meme Program #2)

Looking for a great set of colors for your next project? Don't settle for color charts that are readable and practical! In this video, I will show you how to program a color chart with over 2 million unique colors. It's essentially useless, of course, but it does look nice.
(I am still a newcomer to C++, so your corrections and input are welcome. For instance, I am not certain that the program produces exactly 2,097,152 unique pixels--I may have cut off my vector push_back code or for loops prematurely.)
Much of the video is based on headers, strategies, and code examples from Bjarne Stroustrup's Programming: Principles and Practice (2nd ed). www.stroustrup.com/programming...
The video also incorporates the Fast Light Toolkit (FLTK).

[@johnnary]

When it’s safe to do please do a tour of Orlando international airport

[@GoesGoingToGoGo]

Woah

[@encapsulatio]

Are there shorthand apps/steno apps on android and Ios?