Dica: Outros meios de testar
12345679×9 = 111.111.111
12345679×45 = 555.555.555
12345679×81 = 999.999.999
12345679×63 = 777.777.777
123+456+78+9 = 666
Dica: Outros meios de testar
12345679×9 = 111.111.111
12345679×45 = 555.555.555
12345679×81 = 999.999.999
12345679×63 = 777.777.777
123+456+78+9 = 666
para instalar
$ sudo apt-get install exiftool
ver metadados do arquivo
$ exiftool image.jpg
limpar metadados
$ exiftool -all= image.jpg
ver gps da imagem
$ exiftool -n -gpslatitude -gpslongitude image.jpg
Programas
Aseprite
pyxeledit
Piskel
PikoPixel
Pixelorama
Gimp
Krita
Sites
https://lospec.com/palette-list
https://pixelation.org/index.php
https://pixeljoint.com/
https://www.pixilart.com/tutorials/pixel-art
https://blog.studiominiboss.com/pixelart
Galerias para referências
https://www.spriters-resource.com
https://spritedatabase.net
https://opengameart.org/
https://www.vg-resource.com
https://www.mariouniverse.com
https://www.videogamesprites.net/
https://www.nesmaps.com
https://www.mfgg.net/
https://sprites-inc.co.uk/
https://www.reddit.com/r/pixelart
https://www.tumblr.com/tagged/pixel-art
https://www.deviantart.com/
https://www.pixiv.net/en/
https://www.behance.net/
https://www.artstation.com
https://www.inprnt.com/
https://dribbble.com/
https://opengameart.org/
https://pinterest.com/
https://www.shutterstock.com/pt/search/pixel-art
Diversos
http://www.yarrninja.com/pixeltutorial/index.html
https://pixelartus.com/
https://www.slynyrd.com/blog/
https://skeddles.com/
https://pixelart.academy/
https://www.retrogames.cc
https://www.retrogames.cz/
https://oldgameshelf.com/
https://itch.io/
https://twitter.com/pixel_dailies
http://cfkaligula.blogspot.com/
http://officialfightingfantasy.blogspot.com/2018/06/andy-green-and-pixels-of-doom.html
Som
https://www.sounds-resource.com
$ sudo apt install python3-pip
$ pip install Image
$ pip install qrcode
$ sudo apt install python3-qrcode
$ qr "Some text" > qrcode.png