<!-- This template is used to generate "../static/theme.html" -->
<style is="custom-style">
  :root {
    --paper-input-container-input-color: @text-color;
    --paper-input-container-input: {
      background-color: @input-background-color;
    }
  }
</style>

<!-- This template is used to generate "../static/theme.html" -->
<style is="custom-style">
  :root {
    --paper-input-container-color: @text-color-subtle;
    --paper-input-container-input-color: @text-color;
  }
</style>

Fix label not being displayed in empty paper-input element
Fix label not being displayed in empty paper-input element

Looks like the input field is drawn on top of the label, and setting
a background-color on the input field to something opaque means the
label is completely hidden from view.
