Transparent base (transparentBase)

#Problem it solves

If you do not set colorBg, gradientBg, customBg, or videoBg, CanvasCreator would normally fill with opaque black #000.

#What transparentBase: true does

Skips that default black so your scene can start from transparency, then build visibility using bgLayers and/or patternBg / noiseBg.

1await painter.createCanvas({2  width: 400,3  height: 400,4  transparentBase: true,5  bgLayers: [6    { type: 'color', value: 'rgba(99, 102, 241, 0.4)' },7  ],8});

#When to use

• PNG exports that need real alpha outside UI widgets.
• Stickers or overlays where only stacked layers should define visible pixels.

#When not to use

• Simple solid banners → just set colorBg.
• Full-bleed photos → use customBg.