Is it possible to configure the Placeholder Text of the "File Upload" component?

Howdy all, 

Haven't seen this question yet, but is it possible to change the look of the File Upload component's Placeholder, to add more visibility.

To Either Reflect This or 

- Option 1:

Option 2:

This is the code snippet:

a!fileUploadField(
  label: "Attachments",
  labelPosition: "ABOVE",
  target: cons!FileLocation,
  value: local!attachment,
  placeholder: "",
  saveInto: {
    ri!Attachment.ID,
    local!attachment
  },
  validations: {},
  buttonStyle: "STANDARD"

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