Change The7 menu text

function.php

add_action( 'admin_menu', 'my_menu_filter', 9999 );

function my_menu_filter() {
$replace_text = "My text";
	foreach ( $menu AS $k => &$v ) {
		$result = array_search( 'the7-dashboard', $v );
		if ( $result ) {
			$v[0] = str_replace( "The7", $replace_text, $v[0] );
		}
	}
}