How to highlight in PhpStorm tpl files of php syntax?

Question

PHP

Highlighting in PhpStorm for tpl files of php syntax.
Good time of the day!
I work with OpenCart, and it, in turn, uses its own template engine instead of the smarty template engine and all data is output to files with the .tpl extension through php variables and this design is obtained

<?php if ($text) { ?>
<h1><?php echo $text; ?></h1>
<?php } else { ?>
<p><?php echo $text_none; ?></p>
<?php } ?>

In this case, PhpStorm does not highlight curly braces {} and it is almost impossible to navigate in large code.
How to make PhpStorm highlight php syntax in tpl files?

Answer 1

File -> Settings -> IDE Settings -> File types -> PHP files
Add the desired file extension to the list by analogy.

Answer 2

At 10: Settings -> Editor -> File types

Answer 3