Create DatabaseAdminExtension.php

generate css file after dev/build

src/Extensions/DatabaseAdminExtension.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace Toast\ThemeColours\Extensions;
+
+use SilverStripe\Control\Director;
+use SilverStripe\ORM\DataExtension;
+use SilverStripe\Security\Security;
+use Toast\ThemeColours\Helpers\Helper;
+
+class DatabaseAdminExtension extends DataExtension
+{
+    public function onAfterBuild()
+    {
+         //generate all the required css files by theme colours
+         if (Security::database_is_ready()) {
+            // theme colours
+            if (Helper::getCurrentSiteConfig()) Helper::generateCSSFiles();
+        }
+    }
+}