a handy little package to compile blueprint.scss from source

yarn install --dev blueprint-sass-compile

{
  "scripts": {
    "build:css": "blueprint-sass-compile <path>",
    "watch:css": "blueprint-sass-compile <path> --watch",
  }
}

Make a file to hold all your Blueprint variable overrides. Be sure to import this first thing in your main Sass file.

What variables are available? See below for links to source code, the ultimate source of truth.

@import '~@blueprintjs/core/lib/scss/variables';

$g: 4px;

//
// Blueprint public vars
//
$pt-grid-size: $g * 2;
$pt-border-radius: $g;

$pt-font-size: $g * 3;
$pt-font-size-large: $pt-font-size + 1px;
$pt-font-size-small: $pt-font-size - 1px;
$pt-line-height: 4 / 3;

//
// Blueprint component vars
//
$card-padding: $g * 3;

$menu-item-border-radius: $pt-border-radius;
$menu-item-line-height: $pt-grid-size * 2;

In your root Sass file, import your overrides file before importing Blueprint source files. Then import all packages from src/. This will produce a single vendor.css file that contains all the compiled Blueprint styles in one file, from all four libraries below.

For performance reasons, it can be nice to split your external stylesheets to a separate vendor.scss because these will likely change much less frequently than your application styles.

// import your overrides first
@import 'blueprint_variables';

// then each blueprint package from `/src/` NOT `/lib/css/`
@import '~@blueprintjs/core/src/blueprint';
@import '~@blueprintjs/datetime/src/blueprint-datetime';
@import '~@blueprintjs/select/src/blueprint-select';
@import '~@blueprintjs/table/src/table';

> yarn build:css
yarn run v1.22.4
$ blueprint-sass-compile src/styles
Rendering Complete, saving .css file...
Wrote CSS to /src/styles/application.css
Wrote Source Map to /src/styles/application.css.map
GET https://raw.githubusercontent.com/palantir/blueprint/develop/resources/icons/16px/chevron-right.svg
GET https://raw.githubusercontent.com/palantir/blueprint/develop/resources/icons/16px/more.svg
GET https://raw.githubusercontent.com/palantir/blueprint/develop/resources/icons/16px/small-tick.svg
GET https://raw.githubusercontent.com/palantir/blueprint/develop/resources/icons/16px/small-minus.svg
Rendering Complete, saving .css file...
Wrote CSS to /src/styles/vendor.css
Wrote Source Map to /src/styles/vendor.css.map
Wrote 2 CSS files to /src/styles
✨  Done in 2.82s.

• Blueprint $pt-variables: https://github.com/palantir/blueprint/blob/develop/packages/core/src/common/_variables.scss
• Blueprint colors $blue3, etc: https://github.com/palantir/blueprint/blob/develop/packages/core/src/common/_colors.scss
• Blueprint color aliases $pt-intent-primary, etc: https://github.com/palantir/blueprint/blob/develop/packages/core/src/common/_color-aliases.scss
• Component variables (non $pt-* but still editable this way) must be looked up in component source code. They are typically defined in a component's main or _common.scss file: https://github.com/search?l=&q=repo%3Apalantir%2Fblueprint+filename%3A_common.scss&type=Code