Invert the icon color in dark mode

Author: monorkin

app/views/accounts/edit.html.erb

@@ -68,7 +68,7 @@
     <div class="margin-block-start pad-block pad-inline-double fill-shade border-radius">
       <%= form_with model: @account, method: :put, data: { controller: "form" }, class: "flex align-center gap center" do |form| %>
         <div class="flex-item-grow flex align-center gap txt-align-start">
-          <%= image_tag "crown.svg", aria: { hidden: "true" }, size: 18 %> Must be admin to create new rooms
+          <%= image_tag "crown.svg", class: "colorize--black", aria: { hidden: "true" }, size: 18 %> Must be admin to create new rooms
         </div>
         <%= form.fields_for :settings, @account.settings do |settings_form| %>
           <%= settings_form.hidden_field :restrict_room_creation_to_administrators,