Draw images
At the beginning of this guide, we mentioned a cool little tool called Sprite editor (icon: brush).
Now, we'll learn how to use it.
If you have ByteBoi, nothing's changed. You can draw and display the images on the screen the same way. But, if you're new here, here comes drawing lessons.
In computer graphics, a sprite is a two-dimensional image or animation that is integrated into a larger scene.

A window will open, as shown in the photo below:

Let's see what each icon means.

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Paintbrush - you'll use it for painting whatever you want.
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Eraser - you'll use it for erasing mistakes you make.
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Color picker - pick a color from the picture and draw.
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Fill in with color - fill the image or part of an image with a different color.
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Color palette - here, you can choose which color you will use for drawing.
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New picture - if you click on a plus (+) sign, you will get a blank window for your new picture. But if you press an arrow pointing down, you will see all the pre-made images.
- Close - once you're done with the drawing, press the big blue button saying "Close".
This is the blank window you'll see at the beginning of the drawing.

You can paint whatever you want, and later on, you can put it on your Chatter's display.

If you don't want to draw, but you'd like to have some cool images on your Chatter, you can always choose a pre-made one.
Maybe you want to draw on the pre-made icons and make them better. No problem, just click on the one you want to upgrade, and start drawing!

For example, I chose to draw a Christmas tree but didn't want to draw a tree from scratch. So, I took a premade tree and drew Christmas ornaments.
Also, I didn't want my tree to have a generic name, so I renamed it to christmastree.
If you want to rename your drawing, you should know that its name cannot begin with a number, and there can't be any spaces between words.

One more tip is that you can change your sprite's resolution in the upper left corner.
The resolution is the size of a sprite, and it's measured in pixels.
A pixel is the smallest controllable element of a picture represented on the screen.

Great job!
You can try drawing from scratch and making your icons.