Color Palette – WordPress plugin
Add a Color Palette block to pages in the post editor.
Changing the Gutenberg color palette - Since1979
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Simple Grey - WordPress theme
Darklup – Enhanced WordPress Dark Mode, Dark Theme, Night Mode Plugin – WordPress plugin
Change Colors in the Customizer – Support
Central Color Palette for Wordpress
10 Variable Product Attribute WordPress Plugins
How to Add Colors to Color Palette in Gutenberg (WordPress)
Managing Brand Colors - Central Color Palette Plugin - WebTNG
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