         step: 1
         max: 255
         name: 'text_background_css_opacity'
-        defaultValue: customization('banner')?.text_background_css_opacity
+        defaultValue: customization('banner')?.text_background_css_opacity or DEFAULT_TEXT_BLOCK_OPACITY
         style:
           width: '100%'
           display: 'block'

        id: 'text_background_css'
        type: 'color'
        name: 'text_background_css'
        defaultValue: customization('banner')?.text_background_css
        style: 
          width: '100%'
          display: 'block'

        BUTTON
          style: 
            border: 'none'

            # backgroundColor: if is_light then "rgba(255,255,255,.2)" else "rgba(0,0,0,.2)"
            # color: if is_light then 'rgba(0,0,0,.6)' else 'rgba(255,255,255,.6)'

            backgroundColor: if is_light then "rgba(0,0,0,.8)" else "rgba(255,255,255,.8)"
            color: if !is_light then 'black' else 'white'

            padding: '4px 8px'
            borderRadius: 8
            cursor: 'pointer'
