v0.4.0

• #6 Fix em units regression
• Improve handling of custom components
  • Allow styling to be applied directly to custom component
  • Support drawing of css border and background around/behind the custom component
• Rework the layout of the example (main.cpp)
• Refactor naming conventions

Example

Custom Components

<!-- before: Had to wrap with div -->
<div style="border: 1px solid green; height: 100px; width: 100px; padding: 15px; flex-shrink: 0"
    <custom-button
        text="Click me"
        tooltip="Tooltip"
    ></custom-button>
</div>

<!-- after: Style works directly on the component -->
<custom-button
    style="border: 1px solid green; height: 100px; width: 100px; padding: 15px; flex-shrink: 0"
    text="Click me"
    tooltip="Tooltip"
></custom-button>