Disable Most Typography & Color Choices in WordPress

In your theme.json file in a Full Site Editor WordPress site, you can control and set up many settings for the site. You can even lock out choices for the site editor.

Instead of the “color” property in the “settings” object only having one property named “palette” – you can add additional properties like this to disable virtually all custom color options for all blocks:

"color": {      
  "background": true,      
  "text": false,      
  "link": false,      
  "custom": false,      
  "defaultPalette": false,      
  "duotone": [],      
  "customDuotone": false,      
  "gradients": [],      
  "customGradient": false,      
  "palette": [        
    {          
      "slug": "primary",          
      "color": "#0d3b66",          
      "name": "Primary"        
    },        
    {          
      "slug": "secondary",          
      "color": "#ee964b",          
      "name": "Secondary"        
    },        
    {          
      "slug": "background",          
      "color": "#FFFFFF",          
      "name": "Background"        
    },        
    {          
      "slug": "foreground",          
      "color": "#333333",          
      "name": "Foreground"        
    }      
  ]    
}

Also, instead of your “typography” object in “settings” only having the one property of “fontSizes” you can have additional properties like this to disable virtually all typographic options in blocks:

"typography": {
  "fontFamilies": [],      
  "fontStyle": false,      
  "fontWeight": false,      
  "letterSpacing": false,      
  "textDecoration": false,      
  "lineHeight": false,      
  "textTransform": false,      
  "dropCap": false,      
  "customFontSize": false,      
  "fontSizes": []    
}

Thanks for the note Brad Schiff!