Hmm. I understand that. Currently I'm using Kirki / Redux Framework for theme options. I would like some of those options page / post_type specific rather than global. I think, at this moment, I've too add another field for opacity. Or may be inherit color field to have transparency, when I'm familiar with metabox code. It would be great to have transparency with color picker. Thanks for your help Anh Tran. 🙂
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