New Fuel Color and Font Change

This release adds the new accent color to Fuel!

It also fixes some font sizing issues as a result of some over-eager CSS: before, nesting an element inside a class altered with a font size class from Fuel would cause the font size of the nested element to be unpredictable. Now the default font size is set correctly to 12pt, and nested elements should behave as expected.

The last big change is that the default font has been changed to simply sans-serif with a recommendation that the previous specification be used instead (BlinkMacSystemFont, -apple-system, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", "Helvetica", "Arial", sans-serif). This saves an awful lot of bytes in the finished product, so I figured it was worth the slight drop in beauty.

There are also a couple other small changes:

• buttons are no longer all-caps with small text by default
• headings h1–h6 use the browser default weight instead of font-weight: 300
• .c no longer reduces the font size
• box-sizing: border-box is now applied correctly

Convert to Sass

This version moves the primary source code from CSSNext to Sass (.scss) in order to allow splitting it into multiple even smaller modules. By using @include in your main SCSS file, you can choose each module invididually from the files and folders in src/modules. This change should allow people to customize their styling even further to only use the pieces of lighter and fuel that then need, resulting in an even smaller CSS output!

This also fixes an issue that prevented <code> blocks from displaying correctly.

Rebranded to "lighter" & "fuel"

Updates the colors to slightly more pleasing ones and enables moving on and adding new things.

lit_2.0.0: Bump major version (breaking changes)

Includes breaking changes for colors in util