Remove Portainer BE branding, based on https://github.com/adripo/portainer-ce-clean-layout stylus script but compiled to actual CSS.

nginx snippet

# To use you can put this in your location proxy block, will automatically intercept Portainer HTML requests and put the CSS file in there.

proxy_set_header Accept-Encoding "";
proxy_buffering off;
gzip off;
sub_filter_once off;
sub_filter_types text/html;
sub_filter '<base id="base"/>' '<base id="base"/><script src="https://cdn.gisthostfor.me/JSH32-SkOcsSXKYq-remove_be.js"></script><link rel="stylesheet" href="https://cdn.gisthostfor.me/JSH32-T2cOu14Cab-remove_be.css">';

remove_be.css

#sideview button:has(+ nav) {
  display: none !important;
}
#sideview
  nav[aria-label="Settings"]
  li[aria-label="Users"]
  li:has(a[href="#!/roles"]) {
  display: none !important;
}
#sideview
  nav[aria-label="Settings"]
  li[aria-label="Authentication logs"]:has(a[href="#!/auth-logs"]) {
  display: none !important;
}
#sideview li[aria-label="Cluster"] li[aria-label="Security constraints"] {
  display: none !important;
}

remove_be.js

(function() {
  function applyStyles() {
    const url = window.location.href;

    // Utility function to apply styles
    function hideElements(selectors) {
      selectors.forEach(selector => {
        const elements = document.querySelectorAll(selector);
        elements.forEach(el => {
          el.style.display = 'none';
        });
      });
    }

    // Styles based on URL patterns
    const styles = [
      {
        pattern: /.*\/#!\/wizard\/endpoints($|\/create\?.*$)/,
        selectors: [
          '#content-wrapper div.app-react-components-BoxSelector-BoxSelectorItem-module__business'
        ]
      },
      {
        pattern: /.*\/#!\/endpoints\/[0-9]+\/access($|\?.*$)/,
        selectors: [
          '#content-wrapper div.form-group:has(be-feature-indicator)'
        ]
      },
      {
        pattern: /.*\/#!\/registries.*/,
        selectors: [
          '#content-wrapper a.be-indicator'
        ]
      },
      {
        pattern: /.*\/#!\/settings.*/,
        selectors: [
          '#content-wrapper div.form-group:has(a.be-indicator)',
          '#content-wrapper div.be-indicator-container',
          '#content-wrapper div.app-react-components-BoxSelector-BoxSelectorItem-module__business'
        ]
      },
      {
        pattern: /.*\/#!\/settings\/auth.*/,
        selectors: [
          '#content-wrapper div.app-react-components-BoxSelector-BoxSelectorItem-module__business',
          '#content-wrapper ldap-settings label[for="ldap_url"] button.limited-be',
          '#content-wrapper ldap-settings ldap-custom-user-search > div.form-group div.col-sm-12:has(be-feature-indicator)',
          '#content-wrapper ldap-settings ldap-custom-group-search > rd-widget div.form-group:has(pr-icon[icon="\'briefcase\'"])',
          '#content-wrapper ldap-settings ldap-custom-group-search > div.form-group div.col-sm-12:has(be-feature-indicator)',
          '#content-wrapper ldap-settings ldap-custom-admin-group',
          '#content-wrapper ldap-settings ldap-settings-test-login',
          '#content-wrapper oauth-settings div.form-group:has(a.be-indicator)'
        ]
      },
      {
        pattern: /.*\/#!\/[0-9]+\/docker\/stacks\/newstack($|.*$)/,
        selectors: [
          '#content-wrapper div:has(> div.form-section-title a.be-indicator)',
          '#content-wrapper div > div.form-section-title:has(a.be-indicator)',
          '#content-wrapper tr:has(div.form-group a.be-indicator)'
        ]
      },
      {
        pattern: /.*\/#!\/[0-9]+\/docker\/containers\/new($|.*$)/,
        selectors: [
          '#content-wrapper div:has(> div.form-group a.be-indicator)'
        ]
      },
      {
        pattern: /.*\/#!\/[0-9]+\/docker\/containers\/[0-9a-fA-F]{64}.*/,
        selectors: [
          '#content-wrapper tr:has(div.form-group a.be-indicator)'
        ]
      },
      {
        pattern: /.*\/#!\/[0-9]+\/docker\/host\/feat-config.*/,
        selectors: [
          '#content-wrapper div.form-group div.col-sm-12:has(a.be-indicator)',
          '#content-wrapper div.form-section-title:has(+ div.form-group div.col-sm-12:only-child a.be-indicator)'
        ]
      },
      {
        pattern: /.*\/#!\/[0-9]+\/docker\/host\/registries.*/,
        selectors: [
          '#content-wrapper be-feature-indicator'
        ]
      },
      {
        pattern: /.*\/#!\/[0-9]+\/kubernetes\/pools\/new($|.*$)/,
        selectors: [
          '#content-wrapper div.form-group:has(label a.be-indicator)',
          '#content-wrapper div.form-section-title:has(+ div.form-group + div.form-section-title + storage-class-switch a.be-indicator)',
          '#content-wrapper div.form-section-title + div.form-group:has(+ div.form-section-title + storage-class-switch a.be-indicator)',
          '#content-wrapper div.form-section-title + div.form-group + div.form-section-title:has(+ storage-class-switch a.be-indicator)'
        ]
      },
      {
        pattern: /.*\/#!\/[0-9]+\/kubernetes\/deploy($|\?.*$)/,
        selectors: [
          '#content-wrapper div.form-group:has(label a.be-indicator)'
        ]
      },
      {
        pattern: /.*\/#!\/[0-9]+\/kubernetes\/cluster\/configure.*/,
        selectors: [
          '#content-wrapper div.form-section-title:has(+ div.form-group por-switch-field[name="\'disableSysctlSettingForRegularUsers\'"] a.be-indicator)',
          '#content-wrapper div.form-section-title + div.form-group:has(por-switch-field[name="\'disableSysctlSettingForRegularUsers\'"] a.be-indicator)',
          '#content-wrapper div:has(> por-switch-field[name="\'restrictStandardUserIngressW\'"] a.be-indicator)',
          '#content-wrapper div:has(+ div > por-switch-field[name="\'resource-over-commit-switch\'"] a.be-indicator)',
          '#content-wrapper div + div:has(> por-switch-field[name="\'resource-over-commit-switch\'"] a.be-indicator)'
        ]
      }
    ];

    styles.forEach(style => {
      if (style.pattern.test(url)) {
        hideElements(style.selectors);
      }
    });
  }

  // Apply styles when the document is ready
  document.addEventListener('DOMContentLoaded', applyStyles);
  // Apply styles on URL change (Single Page Applications)
  window.addEventListener('popstate', applyStyles);
  window.addEventListener('pushState', applyStyles);
})();