I tried to change the _theme.xml of a custom theme based on the blank theme like described in this article: http://devdocs.magento.com/guides/v2.0/frontend-dev-guide/css-topics/css-practice.html
But if I refresh the frontend it doesn't changed. The cache is disabled.
Heres my code: composer.json
{
"name": "my/blank",
"description": "N/A",
"require": {
"php": "~5.5.0|~5.6.0|~7.0.0",
"magento/theme-frontend-blank": "100.0.*",
"magento/framework": "100.0.*"
},
"type": "magento2-theme",
"version": "100.0.2",
"license": [
"OSL-3.0",
"AFL-3.0"
],
"autoload": {
"files": [
"registration.php"
]
}
}
registration.php
\Magento\Framework\Component\ComponentRegistrar::register(
\Magento\Framework\Component\ComponentRegistrar::THEME,
'frontend/my/blank',
__DIR__
);
theme.xml
<theme xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Config/etc/theme.xsd">
<title>My Blank</title>
<parent>Magento/blank</parent>
<media>
<preview_image>media/preview.jpg</preview_image>
</media>