Postgres Trigger to apply a default theme to new Mattermost users

trigger.sql

CREATE OR REPLACE FUNCTION apply_default_theme_for_new_user() RETURNS TRIGGER AS $defaultTheme$
BEGIN
IF (SELECT COUNT(*) FROM preferences WHERE userid=NEW.id AND category='theme') = 0 THEN
  INSERT INTO preferences (userid, category, name, value)
  VALUES (NEW.id, 'theme', '', '{"awayIndicator":"#b8b884","buttonBg":"#004818","buttonColor":"#ffffff","centerChannelBg":"#ffffff","centerChannelColor":"#444444","codeTheme":"monokai","linkColor":"#004818","mentionBg":"#7E9949","mentionColor":"#ffffff","mentionHighlightBg":"#cceecc","mentionHighlightLink":"#444444","newMessageSeparator":"#90ad58","onlineIndicator":"#99cb3f","sidebarBg":"#262626","sidebarHeaderBg":"#363636","sidebarHeaderTextColor":"#ffffff","sidebarText":"#ffffff","sidebarTextActiveBorder":"#7e9949","sidebarTextActiveColor":"#ffffff","sidebarTextHoverBg":"#525252","sidebarUnreadText":"#0aff44","type":"custom"}');
END IF;
RETURN NEW;
END;
$defaultTheme$ LANGUAGE 'plpgsql';

DROP TRIGGER IF EXISTS apply_default_theme_for_new_user ON users;

CREATE TRIGGER apply_default_theme_for_new_user AFTER INSERT ON users
FOR EACH ROW EXECUTE PROCEDURE apply_default_theme_for_new_user();

I would like to see this feature coming back to the CE as well..!