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Opacity and rgba()

See original GitHub issue

@davidmanzanares

is it expected behaviour that opacity: 0.5 (for example) doesn’t work if color is defined in rgba() where a=1?

Issue Analytics

State:
Created 6 years ago
Comments:15 (9 by maintainers)

Top GitHub Comments

1reaction

davidmanzanarescommented, Feb 13, 2018

Thanks @elenatorro ! you reminded me of the opacity layer @makella talked with me some time ago, this is not the same as feature opacity and would require its own property for sure.

So… another problem on the table 😂

1reaction

elenatorrocommented, Feb 13, 2018

Hi 😃 I am writing a comment here just to point how opacity and alpha channels usually work in CSS. Of course, this is totally different to CSS, but since maybe many users would use the renderer having this field of knowledge, it may be possible that they expect the same behaviour.

When using an alpha channel with rgba (or hsla), this opacity value is applied only in the property it refers to (i.e: the border, the background, the font…)
When using the opacity property, the opacity value applies to all the elements.

I have no idea how this affects the renderer and, AFAIK, since it works in layers, we may not need to have an opacity property. I wanted to add this information just in case it could be useful 😃 Thanks!