040000 tree cf99cd5f6a25dec3c254d9974e9607b810a4cbc6	hovercard-mixin
040000 tree 5dd1c4319cd4443e7f6033b194013091d9948acd	iron-fit-mixin
040000 tree 0be01ea7fd8996a27d67f4d20f50b1f11187a2ac	iron-overlay-mixin
040000 tree 841df39c6bba914ca877ee2058b89097348224e3	keyboard-shortcut-mixin