If only images.php you want to affect, then belowinclude(ROOT_PATH.'includes/search_utils.php');
insert:$textarea_size = 50;
change number to whatever you want.
If you want to change these settings for every file in ACP, then you can play in admin/admin_globals.php with these numbers:if (strstr(getenv("HTTP_USER_AGENT"), "MSIE")) { // Browser Detection
$textinput_size = "50";
$textinput_size2 = "30";
$textarea_size = "50";
}
else {
$textinput_size = "30";
$textinput_size2 = "17";
$textarea_size = "28";
}
Then if you want to change default number of rows (height), then adjust number 10 in admin/admin_functions.php in this line:function show_textarea_row($title, $name, $value = "", $cols = "", $rows = 10) {