Two designs for a five-suited deck of cards.
These cards are numbered as dozenals from 0 to 11. Ten is represented with a stylized X and eleven is represented with an upside-down 3. There are five suits: clubs, diamonds, hearts, spades, and stars. There are three colors: red, blue, and purple.
In dozenal numbering, ten is named dek and eleven is named el. In some of the rules posted in the games folder, they may be referred to as symbol cards with a similar function as face cards.
Red was chosen for diamaonds and hearts, similar to a standard deck of playing cards. Blue, however, was chosen in place of black so that the purple color of stars could be explained as red + blue. Also, the traditional green for a fifth suit didn't look as good in my first draft of making the cards.
Like Cinque, these cards are numbered as dozenals from 0 to 11. Again, ten is represented with a stylized X and eleven is represented with an upside-down 3. There are five suits: clubs, diamonds, hearts, spades, and stars. There are five colors in double cinque: red, green, blue, purple and gold.
One other notable difference is that all the cards of a given suit are not the same color. This allows for games that use runs (sequences of numbers), sets (cards made up of the same suit such as hearts or stars), and matches (cards comprised of the same color).
Another minor difference is the different design for the card backs.
In the Games folder will be rules for various games. Some, like Cinque Poker, will be similar to known US card games.
The numbers and suits are from the Quivira font (http://www.quivira-font.com) and has been in the Public Domain since 2019. Earlier drafts used Font Awesome (https://fontawesome.com), but any icons used, including the numbers, were removed. It still helps to make great websites, though.