| Variable                   | Description & Values                                                                                                                                                                                                                  |
|:---------------------------|:--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `use_<<key>>`<sup>1</sup>  | **Description:** Turns off individual Overlays in a Defaults file.<br>**Values:** `false` to turn off the overlay                                                                                                                     |
| `file`                     | **Description:** Controls the images associated with all the Overlays to a local file.<br>**Values:** Filepath to Overlay Image                                                                                                       |
| `file_<<key>>`<sup>1</sup> | **Description:** Controls the image associated with this key's Overlay to a local file.<br>**Values:** Filepath to Overlay Image                                                                                                      |
| `url`                      | **Description:** Controls the images associated with all the Overlays to a url.<br>**Values:** URL to Overlay Image                                                                                                                   |
| `url_<<key>>`<sup>1</sup>  | **Description:** Controls the image associated with this key's Overlay to a url.<br>**Values:** URL to Overlay Image                                                                                                                  |
| `git`                      | **Description:** Controls the images associated with all the Overlays to the git repo.<br>**Values:** Git Path to Overlay Image                                                                                                       |
| `git_<<key>>`<sup>1</sup>  | **Description:** Controls the image associated with this key's Overlay to the git repo.<br>**Values:** Git Path to Overlay Image                                                                                                      |
| `repo`                     | **Description:** Controls the images associated with all the Overlays to a custom repo.<br>**Values:** Repo Path to Overlay Image                                                                                                     |
| `repo_<<key>>`<sup>1</sup> | **Description:** Controls the image associated with this key's Overlay to a custom repo.<br>**Values:** Repo Path to Overlay Image                                                                                                    |
| `horizontal_offset`        | **Description:** Controls the Horizontal Offset of this overlay. Can be a %.<br>**Values:** Number 0 or greater or 0%-100%                                                                                                            |
| `horizontal_align`         | **Description:** Controls the Horizontal Alignment of the overlay.<br>**Values:** `left`, `center`, or `right`                                                                                                                        |
| `vertical_offset`          | **Description:** Controls the Vertical Offset of this overlay. Can be a %.<br>**Values:** Number 0 or greater or 0%-100%                                                                                                              |
| `vertical_align`           | **Description:** Controls the Vertical Alignment of the overlay.<br>**Values:** `top`, `center`, or `bottom`                                                                                                                          |
| `back_color`               | **Description:** Controls the Backdrop Color for the Text Overlay.<br>**Values:** Color Hex Code in format `#RGB`, `#RGBA`, `#RRGGBB` or `#RRGGBBAA`<br>`AA` is transparency; 00 [transparent] to FF [opaque]                         |
| `back_width`               | **Description:** Controls the Backdrop Width for the Text Overlay. If `back_width` is not specified the Backdrop Sizes to the text<br>**Values:** Any number greater than 0                                                           |
| `back_height`              | **Description:** Controls the Backdrop Height for the Text Overlay. If `back_height` is not specified the Backdrop Sizes to the text<br>**Values:** Any number greater than 0                                                         |
| `back_align`               | **Description:** Controls the Alignment for the Text Overlay inside the backdrop. If `back_align` is not specified the Backdrop Centers the text.<br>**Values:** `left`, `right`, `center`, `top`, or `bottom`                        |
| `back_padding`             | **Description:** Controls the Backdrop Padding for the Text Overlay.<br>**Values:** Any number greater than 0                                                                                                                         |
| `back_radius`              | **Description:** Controls the Backdrop Radius for the Text Overlay.<br>**Values:** Any number greater than 0                                                                                                                          |
| `back_line_color`          | **Description:** Controls the Backdrop Line Color for the Text Overlay.<br>**Values:** Color Hex Code in format `#RGB`, `#RGBA`, `#RRGGBB` or `#RRGGBBAA``AA` is transparency; 00 [transparent] to FF [opaque]                        |
| `back_line_width`          | **Description:** Controls the Backdrop Line Width for the Text Overlay.<br>**Values:** Any number greater than 0                                                                                                                      |

1. Each default overlay has a `key` that when calling to effect a specific collection you must replace `<<key>>` with 
when calling.