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A gradient of blue squares.

Use circles to create an interesting pattern.

Oink!

Draw a circular pattern using the arc function.

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Draw a retro-futuristic curved grid.

Draw a friendly spider.

Draw triangles inside triangles inside triangles.

Use variables to draw a pumpkin.

Use the random() function to draw a random pumpkin.

Use the random() function to draw a random skull.

Style your text with custom fonts.

Create a function that draws a house.

Create a function that draws a town.

Use functions to draw a random city.

Fill the screen with random lines.

Show a falling line that fills the screen.

Create a border of squares.

Show a scribble that randomly moves around.

Draw a line, pick a new color, move a bit.

Fill the screen with random pumpkins.

Animate a flickering Jack-o'-lantern.

Fill the screen with random skulls.

Boo!

Create text that opens a link when you click it.

Show a ripple when you click the mouse.

Make your computer mad when you click the mouse.

Use a for loop to create a silhouette of lines.

Draw lines the wrong way.

Draw a gradient from one color to another.

Draw a grid of random flowers.

Use `sin()` to make spooky text.

Code your own virtual menorah!

Show falling points that look like snow.

Show lines that oscillate up and down.

Use a 2D array to show a fading grid.

How far into the year are we?

Use text-to-speech to create a numbers station.

Ooh! Aah!

Use recursion to create a digital bonsai tree.

Draw lines that loop around the screen.

Draw lines that draw other lines.

Fill circles with your mouse that pop if they touch.

Create an ant colony simulation.

Remember those quiet evenings.

Boo!

Increase the randomness of an image along the Y-axis.

Make your own image filter.

Replace the colors in an image.

Blend two images together.

Rearrange an image into tiles.

Turn an image into a digital painting.

Rearrange the pixels in an image.

Sort the pixels in an image.

Use the p5.sound library to play random notes.