[Pimcore 11 / Bug] Admin UI light theme does not contrast with icons

[Niklas]

Related to: coreshop/CoreShop#2566

With the light theme the menu icon looks like:

And on hover:

This is the full CSS path selector to the li menu item, unfortunately I cannot find anything which signals the light theme is used:

html#ext-element-6.x-viewport
body#ext-element-1.pimcore_version_11.x-gecko.x-windows.x-desktop.x-body.x-keyboard-mode.x-border-box.x-scroller.x-container.x-container-default
div#pimcore_sidebar.with-notifications
div#pimcore_navigation
ul#pimcore_navigation_ul
li#plugin_pm_shortcut_menu.pimcore_menu_item.true-initialized

Pimcore themselves resolved it by inverting the icons in pimcoreadminuiclassiclighttheme/css/admin.css:

#pimcore_navigation .x-menu-item-icon, .pimcore_navigation_flyout .x-menu-item-icon-default, .pimcore_panel_toolbar_horizontal .pimcore_main_toolbar .x-btn-icon-el, .pimcore_panel_toolbar_horizontal_border_layout .pimcore_main_toolbar .x-btn-icon-el, .pimcore_editor_tabbar .x-tab-icon-el, .pimcore_main_accordion .pimcore_icon_material, .pimcore_headbar_submenu_menu .x-menu-item-icon, .x-menu .pimcore_nav_icon_custom_report_default, #pimcore_panel_tabs > .x-panel-bodyWrap > .x-tab-bar .x-tab-bar-body .backend_power_tools_admin_bookmark_list {
    filter: invert(0.7);
}

[Niklas]

We won't be using Admin UI light theme, but feel free to re-open if another brave soul tries. :)