There are two ways to create a custom style
From the canvas, click on the style dropdown menu and then click the + button in the upper left hand corner next to the Styles label. This will open the style builder where you can create a custom style from a prompt.
With any image or group of images selected on the canvas, click on the Create Style button in the sidebar. This will send your selected images through a vision model and will write a style prompt for you. You can then use the style builder to iterate on that prompt.
Best practices
More words are not necessarily better. Try experimenting with a few words at a time to see how that impacts your results.
Use the Exclude prompt to further guide the model on what you don't want the style to be. For example, you can exclude certain colors, textures, or lighting effects.
Put the most important words at the beginning of your prompt. These words will be weighted highest.
If you are not getting the results you want, try to describing your desired style in multiple ways.
For example, "Moody, dramatic lighting, harsh shadows, contrast between dark and light"
Use the {prompt} token to indicate where the user provided prompt should be inserted.
For example: "Comic book illustration of {prompt}, halftone and bold outlines"
Examples of customs styles
Yellow and pink futuristic photograph of {prompt}, clean background, pastel colors, high-resolution
Stylized, fuzzy abstract wool {prompt}, smooth and amorphous, rendered in warm orange and red gradients with soft, diffused lighting, solid gradient background
{prompt}, made out of lego pieces, blank background, studio photography