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How do I change the transparency of a layer in Aseprite?

Published in Layer Transparency 3 mins read

To change the transparency of a layer in Aseprite, you are essentially modifying its opacity. Aseprite treats transparency as an alpha value, where lower values make the layer more transparent and higher values make it more opaque. Here's how you can control layer transparency:

Adjusting Layer Opacity

You can control the layer's transparency through the layer properties. Here is how:

  1. Select the Layer: First, you need to select the layer you want to modify in the Layers window.
  2. Layer Properties: Once selected, you will see a bar that indicates the layer's blend mode, opacity, and visibility.
  3. Modify Opacity: Click on the opacity value, a slider will appear that allows you to adjust the opacity/transparency of the layer.
    • Moving the slider to the left will decrease the layer's opacity, making it more transparent.
    • Moving the slider to the right will increase the layer's opacity, making it more opaque.
  4. Preview: Observe the canvas as you modify the opacity to see the changes in real time. This way, you will be able to set the desired level of transparency.


Additional Notes on Transparent Layers

Creating a New Transparent Layer

You can create a new transparent layer using the menu or shortcut.

  • Menu: Go to Layer > New > New Layer
  • Shortcut: Use the keyboard shortcut Shift + N
    • Reference: Transparent Layers: This will create a new transparent layer, which you can then adjust further.

Clearing Content to Transparency

When you select content on a transparent layer and clear it (using the Edit > Clear menu), that portion of the layer will become fully transparent.

  • Reference: Transparent Layers: This means, instead of replacing the pixels with a white background, the pixels will become transparent.


Table of Aseprite Transparency Actions

Action Method Outcome
Decrease Layer Opacity Layer Property Slider Makes layer more transparent
Increase Layer Opacity Layer Property Slider Makes layer more opaque
Create Transparent Layer Layer > New > New Layer or Shift+N Creates a new layer with full transparency
Clear Selection Edit > Clear Turns selected pixels into fully transparent pixels on a transparent layer.


Using these methods, you can finely adjust the transparency of your layers in Aseprite. Understanding how to manipulate opacity is essential for creating layered artworks and achieving the desired visual effects.

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