Liferay Portal CE 7.1’s UI improvements required these CSS-related changes:

  • Renaming CSS files
  • Class variable changes
  • Updating core imports

The theme upgrade process involves conforming to these changes. Now you’ll update your theme’s CSS files to reflect these changes. Start with updating CSS file names.

Updating CSS File Names for Clay

Some of the CSS filenames have changed to reflect the introduction of Clay (previously Lexicon CSS). The filename changes for the unstyled theme are listed below. Refer to the Theme Reference Guide for a complete list of expected theme CSS files.

The old 7.0 aui filenames are shown below:

  • css/
    • _aui_custom.scss
    • _aui_variables.scss
    • aui.scss

Rename the aui files to match the updated 7.1 clay filenames shown below:

  • css/
    • _clay_custom.scss
    • _clay_variables.scss
    • clay.scss

Next, you can note the removed and deprecated variables and mixins for Bootstrap 4 and Lexicon.

Class Variable Changes

Liferay Portal CE 7.1 uses Bootstrap 4’s CSS rule syntax. The new syntax lets developers leverage Bootstrap 4 features and improvements. If your theme does not use the Liferay Theme Generator, you can refer to the Migrating to v4 guide for updating CSS rules to Bootstrap 4.

If your theme uses the Liferay Theme Generator, the gulp upgrade task suggests manual updates. For example, here is part of the task log for the 7.0 Westeros Bank theme:

    ----------------------------------------------------------------
     Lexicon Upgrade (1.0 to 2.0)
    ----------------------------------------------------------------

    File: _variables_custom.scss
        $brand-default was deprecated in Lexicon CSS 1.x.x and has been removed 
         in the new Clay 2.x.x version

The log lists removed and/or deprecated variables and suggests possible changes. For each update performed or suggested, the task reports a file name. For reference, here’s the full list of variable changes:

The following variables were removed in Bootstrap 4:

    $line-height-computed
    $padding-base-horizontal
    $padding-base-vertical
    $padding-large-horizontal
    $padding-large-vertical
    $padding-small-horizontal
    $padding-small-vertical
    $padding-xs-horizontal
    $padding-xs-vertical
    $gray-base
    $gray-darker
    $gray-dark
    $gray
    $gray-light
    $gray-lighter
    $brand-primary
    $brand-success
    $brand-info
    $brand-warning
    $brand-danger
    $state-success-text
    $state-success-bg
    $state-success-border
    $state-info-text
    $state-info-bg
    $state-info-border
    $state-warning-text
    $state-warning-bg
    $state-warning-border
    $state-danger-text
    $state-danger-bg
    $state-danger-border

See Bootstrap Migration Guide for a full list of the changes.

The following Lexicon variables were deprecated in Lexicon CSS 1.x.x and are removed in the new Clay 2.x.x version:

    $atlas-theme
    $box-shadow-default
    $box-shadow-default-bg
    $box-shadow-default-blur
    $box-shadow-default-spread
    $box-shadow-default-x
    $box-shadow-default-y
    $brand-danger-active
    $brand-danger-hover
    $brand-default
    $brand-default-active
    $brand-default-hover
    $brand-info-active
    $brand-info-hover
    $brand-primary-active
    $brand-primary-hover
    $brand-success-active
    $brand-success-hover
    $brand-warning-active
    $brand-warning-hover
    $inverse-active-bg
    $inverse-active-border
    $inverse-active-color
    $inverse-bg
    $inverse-border
    $inverse-color
    $inverse-disabled-color
    $inverse-header-bg
    $inverse-header-border
    $inverse-header-color
    $inverse-hover-bg
    $inverse-hover-border
    $inverse-hover-color
    $inverse-link-color
    $inverse-link-hover-color
    $state-danger-bg
    $state-danger-border
    $state-danger-text
    $state-default-bg
    $state-default-border
    $state-default-text
    $state-info-bg
    $state-info-border
    $state-info-text
    $state-primary-bg
    $state-primary-border
    $state-primary-text
    $state-success-bg
    $state-success-border
    $state-success-text
    $state-warning-bg
    $state-warning-border
    $state-warning-text

The following Lexicon mixins are removed in Clay 2.x.x:

@mixin color-placeholder:

Lexicon’s color-placeholder($element, $color: $input-color-placeholder) mixin is deprecated as of v1.0.9 and was removed in v2.0.0. Please use placeholder($color: $input-color-placeholder) instead.

@mixin select-box-icon:

Lexicon’s select-box-icon($color) mixin is deprecated as of v1.0.10 and was removed in v2.0.0. Please use background-image: lx-icon($name, $color) instead.

Note that if the gulp upgrade task detects any variables in your theme that have been removed in Clay from the previous LexiconCSS version, it adds the _variables_deprecated.scss file to your theme with the variables to make sure the theme compiles and to decouple it from future upgrades. If you wish to include this file manually, here are its contents for reference:

@warn "You're using deprecated variables. Please refer to the update guides 
to remove its usage";

// Deprecated `$brand-*-*` as of v1.0.24, removed in v2.0.0
$brand-default: #869CAD !default; // Atlas
$brand-default-active: darken($brand-default, 12%) !default; // Atlas
$brand-default-hover: darken($brand-default, 8%) !default; // Atlas

$brand-primary: #65B6F0 !default;
$brand-primary-active: darken($brand-primary, 12%) !default; // Atlas
$brand-primary-hover: darken($brand-primary, 8%) !default; // Atlas

$brand-success: #76BD4A !default;
$brand-success-active: darken($brand-success, 12%) !default; // Atlas
$brand-success-hover: darken($brand-success, 8%) !default; // Atlas

$brand-info: #1E5EC8 !default;
$brand-info-active: darken($brand-info, 12%) !default; // Atlas
$brand-info-hover: darken($brand-info, 8%) !default; // Atlas

$brand-warning: #F5984C !default;
$brand-warning-active: darken($brand-warning, 12%) !default; // Atlas
$brand-warning-hover: darken($brand-warning, 8%) !default; // Atlas

$brand-danger: #C67 !default;
$brand-danger-active: darken($brand-danger, 12%) !default; // Atlas
$brand-danger-hover: darken($brand-danger, 8%) !default; // Atlas

// Box Shadow
// Defines global box-shadows

// Deprecated `$box-shadow-default-*` as of v1.0.24, removed in v2.0.0
$box-shadow-default-x: 0 !default; // Atlas
$box-shadow-default-y: 0 !default; // Atlas
$box-shadow-default-blur: 3px !default; // Atlas
$box-shadow-default-spread: 1px !default; // Atlas
$box-shadow-default-bg: rgba(0, 0, 0, 0.2) !default; // Atlas
$box-shadow-default: $box-shadow-default-x $box-shadow-default-y $box-shadow-default-blur $box-shadow-default-spread $box-shadow-default-bg !default; // Atlas

// Inverse Colors

// Deprecated `$inverse-*` as of v1.0.24, removed in v2.0.0
$inverse-bg: #1F282E !default; // Atlas
$inverse-border: darken($inverse-bg, 10%) !default; // Atlas
$inverse-color: #869CAD !default; // Atlas

$inverse-active-bg: #3A4D5A !default; // Atlas
$inverse-active-border: darken($inverse-active-bg, 1%) !default; // Atlas
$inverse-active-color: #FFF !default; // Atlas

$inverse-disabled-color: #394956 !default; // Atlas

$inverse-hover-bg: #1C252C !default; // Atlas
$inverse-hover-border: darken($inverse-hover-bg, 1%) !default; // Atlas
$inverse-hover-color: $inverse-color !default; // Atlas

$inverse-header-bg: #1B2228 !default; // Atlas
$inverse-header-border: darken($inverse-header-bg, 1%) !default; // Atlas
$inverse-header-color: $inverse-color !default; // Atlas

$inverse-link-color: #FFF !default; // Atlas
$inverse-link-hover-color: $inverse-link-color !default; // Atlas

// States for Form and alert

// Deprecated `$state-*-*` as of v1.0.24, removed in v2.0.0
$state-default-text: $brand-default !default; // Atlas
$state-default-bg: lighten($state-default-text, 34%) !default; // Atlas
$state-default-border: $state-default-text !default; // Atlas

$state-primary-text: $brand-primary !default; // Atlas
$state-primary-bg: lighten($state-primary-text, 12%) !default; // Atlas
$state-primary-border: $state-primary-text !default; // Atlas

$state-success-text: $brand-success !default;

$state-success-bg: lighten($state-success-text, 34%) !default;
$state-success-border: $state-success-text !default;

$state-info-text: $brand-info !default;

$state-info-bg: lighten($state-info-text, 34%) !default;
$state-info-border: $state-info-text !default;

$state-warning-text: $brand-warning !default;

$state-warning-bg: #F8F4D5 !default;
$state-warning-border: $state-warning-text !default;

$state-danger-text: $brand-danger !default;

$state-danger-bg: lighten($state-danger-text, 34%) !default;
$state-danger-border: $state-danger-text !default;

After updating your theme’s CSS variables and mixins, you should update the Font Awesome Icon imports.

Updating Font Awesome Icon Imports

Originally in Liferay Portal CE 7.0 and Liferay DXP, Font Awesome icons were imported in _aui_variables.scss (now renamed _clay_variables.scss). Font Awesome icons were later moved to their own file (font-awesome.scss) to avoid the IE9 CSS selector limitation. If your 7.0 theme was made prior to this move and you modified _aui_variables.scss, you must remove the Font Awesome imports shown below:

    // Icon paths
    $FontAwesomePath: "aui/lexicon/fonts/alloy-font-awesome/font";
    $font-awesome-path: "aui/lexicon/fonts/alloy-font-awesome/font";
    $icon-font-path: "aui/lexicon/fonts/";

Next you can update the core imports.

Updating Core Imports

Update the old aui lexicon paths to use the clay paths instead, as shown in the table below:

Pattern Replacement
@import "/aui/lexicon/bootstrap/mixins/"; removed
@import "/aui/lexicon/lexicon-base/mixins/"; removed
@import "/aui/lexicon/atlas-theme/mixins/"; removed
@import "aui/lexicon/atlas-variables"; @import "clay/atlas-variables";
@import "aui/lexicon/atlas"; @import "clay/atlas";

Related Topics

Updating Theme Templates

Copying an Existing Theme’s Files

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