Texture transparency: semi-transparent pixels darken - Rendering

Here's an issue I've had for years I'm curious if anyone knows why it happens or if there's a fix. The basis of the problem is that areas of a texture that are semitransparent seem to also get darker in value when rendered. For example, here I have an image prop that is a soft-edged yellow cir

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Texture transparency: semi-transparent pixels darken - Rendering

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