Make disturber elements' background color selectable

tailwind.config.js

@@ -67,6 +67,7 @@ module.exports = {
                 ep: {
                     primary: '#3d8ccb',
                     secondary: '#f9c700',
+                    'primary-bg': '#ebf3fa',
                     'primary-light': '#009fff',
                     'primary-medium': '#165883',
                     'primary-dark': '#18527B',