How to make custom Minecraft item textures that look vanilla

Item textures are the small icons you see in your inventory and hand. Vanilla items are only 16 by 16 pixels, so every pixel counts. If you want your custom sword or potion to look like it belongs in the game, there are a handful of rules the original artists followed. They are easy to copy once you know them.

Use a transparent background and a tight silhouette

An item icon has no background. The empty area around it is transparent and the object fills most of the square. Leave one pixel of space at the edge for 16 by 16 icons. AI tools usually draw a white or colored background, so the Studio removes it and crops to the object for you, then scales it to a real 16 by 16 or 32 by 32 image.

Add a dark outline

Most vanilla item icons have a darker edge along the shape. It separates the item from whatever is behind it in the inventory. The outline is not black. It is a darker version of the item color, for example dark brown around a wooden stick or dark blue around a diamond tool.

Light comes from the top left

Vanilla icons are lit from the top left. Highlights sit on the upper left edges and shadows on the lower right. If every item in your pack follows the same light direction, the whole inventory feels consistent. Mention "lit from the top left" in your prompt if a result looks flat.

Tools and swords point diagonally

Swords, pickaxes and axes are drawn on a diagonal with the handle at the lower left and the tip at the upper right. The Item mode asks the model for exactly that pose. Food, potions and gems are shown straight on and centered.

Keep the palette small

A 16 by 16 icon usually uses between 6 and 14 colors. More colors do not add detail at this size, they add noise. The Studio limits the palette for each size, which is why generated icons look clean and not blurry. For a stronger look, choose the Vibrant style. For a softer one, choose Soft.

• 16 by 16: about 14 colors, bold shapes, one pixel outline.
• 32 by 32: about 24 colors, room for small details like gems and stitching.
• 64 by 64: about 36 colors, for packs that use a higher resolution everywhere.

Write a prompt that gives a clean icon

Describe one object and its materials. Say what makes it special, such as a glow or a trim. Avoid scenes, hands, text and backgrounds.

• Good: "A netherite pickaxe with a red ore vein in the head."
• Good: "A cookie with chocolate chips and one bite taken out."
• Weak: "A hero holding a sword in a forest."

Replacing a vanilla item

Name your file after the vanilla item, for example diamond_sword.png, and place it in assets/minecraft/textures/item. The Studio export does this when you type the vanilla name in the Replaces field. If you want a brand new item, use a custom model and the custom model data feature instead of replacing an existing icon.

Finish by hand if you want

A generated icon is a strong starting point. If one pixel looks wrong, open the PNG in a pixel editor and fix it. Changing three or four pixels can turn a good icon into one that looks drawn on purpose.