…at can't be right

… a good enough start

…hing. Idk, I wrote this a few days ago, I just need this clone for testing so `git commit`

…ut UpdateAppearance ends up getting called immediately after so it blows it away. Dustin had a crazy idea...

    and as soon ad I typed that out I realized that WINRT_PROPERTY already has
    setters and setting an optional override gets me nothing

    sure I could stealth the new value in underneath the runtime value, so
    reloading the settings doesn't reset font size, colors, etc

    I could

    but it sure does feel like overkill for "refactor but don't change anything"

…backgrounds and now they're totally transparent

…anup of these guys.

> yes, but also, no. I tried doing that in 5173ea3, but alas, that doesn't work. There's a lot of places that assumes `IControlSettings requires IControlAppearance`. If you make `ControlSettings` only implement `IControlSettings` and `ICoreSettings`, and not the Appearances as well, then there are various places in UpdateSettings that will crash. (Those could likely be re-written as well, with some pain.)
>
> In almost all cases where we're using a `IControlSettings` as an Appearance, we're only interested in the `FocusedAppearance`'s value.

…rance is broken again.

…ng else gracefully falls back to grayscale

  This works for opacity for all Terminal cases. Need to still fix conhost.

```json
    "persistedWindowLayouts" :
    [
        {
            "initialPosition" : "149,43",
            "initialSize" :
            {
                "height" : 901.0,
                "width" : 1499.0
            },
            "tabLayout" :
            [
                {
                    "action" : "newTab",
                    "commandline" : "c:\\windows\\system32\\cmd.exe /k colortool.exe -c",
                    "profile" : "One Half Light + cleartype + acrylic",
                    "startingDirectory" : null,
                    "suppressApplicationTitle" : false,
                    "tabTitle" : "One Half Light + cleartype + acrylic"
                },
                {
                    "action" : "splitPane",
                    "commandline" : "c:\\windows\\system32\\cmd.exe /k colortool.exe -c",
                    "profile" : "One Half Light + cleartype + vintage",
                    "size" : 0.5,
                    "split" : "right",
                    "splitMode" : "manual",
                    "startingDirectory" : null,
                    "suppressApplicationTitle" : false,
                    "tabTitle" : "One Half Light + cleartype + vintage"
                },
                {
                    "action" : "moveFocus",
                    "direction" : "previousInOrder"
                },
                {
                    "action" : "splitPane",
                    "commandline" : "c:\\windows\\system32\\cmd.exe /k colortool.exe -c",
                    "profile" : "One Half Light + grayscale + acrylic",
                    "size" : 0.70000004768371582,
                    "split" : "down",
                    "splitMode" : "manual",
                    "startingDirectory" : null,
                    "suppressApplicationTitle" : false,
                    "tabTitle" : "One Half Light + grayscale + acrylic"
                },
                {
                    "action" : "splitPane",
                    "commandline" : "c:\\windows\\system32\\cmd.exe /k colortool.exe -c",
                    "profile" : "One Half Light + cleartype + acrylic(100)",
                    "size" : 0.5,
                    "split" : "down",
                    "splitMode" : "manual",
                    "startingDirectory" : null,
                    "suppressApplicationTitle" : false,
                    "tabTitle" : "One Half Light + cleartype + acrylic(100)"
                },
                {
                    "action" : "moveFocus",
                    "direction" : "nextInOrder"
                },
                {
                    "action" : "splitPane",
                    "commandline" : "c:\\windows\\system32\\cmd.exe /k colortool.exe -c",
                    "profile" : "One Half Light + grayscale + vintage",
                    "size" : 0.70000004768371582,
                    "split" : "down",
                    "splitMode" : "manual",
                    "startingDirectory" : null,
                    "suppressApplicationTitle" : false,
                    "tabTitle" : "One Half Light + grayscale + vintage"
                },
                {
                    "action" : "splitPane",
                    "commandline" : "c:\\windows\\system32\\cmd.exe /k colortool.exe -c",
                    "profile" : "One Half Light + cleartype + vintage(100)",
                    "size" : 0.5,
                    "split" : "down",
                    "splitMode" : "manual",
                    "startingDirectory" : null,
                    "suppressApplicationTitle" : false,
                    "tabTitle" : "One Half Light + cleartype + vintage(100)"
                },
                {
                    "action" : "focusPane",
                    "id" : 5
                },
            ]
        }
    ]
```

    with the following profiles:

    ```json
            {
                "antialiasingMode": "cleartype",
                "colorScheme": "One Half Light",
                "commandline": "c:\\windows\\system32\\cmd.exe /k colortool.exe -c",
                "font":
                {
                    "size": 8
                },
                "guid": "{e7f732da-f5c2-5f52-afd2-82518887a012}",
                "name": "One Half Light + cleartype + acrylic",
                "opacity": 50,
                "useAcrylic": true
            },
            {
                "antialiasingMode": "cleartype",
                "colorScheme": "One Half Light",
                "commandline": "c:\\windows\\system32\\cmd.exe /k colortool.exe -c",
                "font":
                {
                    "size": 8
                },
                "guid": "{e52bc30c-4fa8-5650-9c00-b619544efa5e}",
                "name": "One Half Light + cleartype + vintage",
                "opacity": 50,
                "useAcrylic": false
            },
            {
                "antialiasingMode": "grayscale",
                "colorScheme": "One Half Light",
                "commandline": "c:\\windows\\system32\\cmd.exe /k colortool.exe -c",
                "font":
                {
                    "size": 8
                },
                "guid": "{a870263b-0a3f-561f-82d2-bafc1163f1fc}",
                "name": "One Half Light + grayscale + acrylic",
                "opacity": 50,
                "useAcrylic": true
            },
            {
                "antialiasingMode": "grayscale",
                "colorScheme": "One Half Light",
                "commandline": "c:\\windows\\system32\\cmd.exe /k colortool.exe -c",
                "font":
                {
                    "size": 8
                },
                "guid": "{58a6ffb9-ead3-53ae-a696-c3eb27292578}",
                "name": "One Half Light + grayscale + vintage",
                "opacity": 50,
                "useAcrylic": false
            },
            {
                "antialiasingMode": "cleartype",
                "colorScheme": "One Half Light",
                "commandline": "c:\\windows\\system32\\cmd.exe /k colortool.exe -c",
                "font":
                {
                    "size": 8
                },
                "name": "One Half Light + cleartype + acrylic(100)",
                "opacity": 100,
                "useAcrylic": true
            },
            {
                "antialiasingMode": "cleartype",
                "colorScheme": "One Half Light",
                "commandline": "c:\\windows\\system32\\cmd.exe /k colortool.exe -c",
                "font":
                {
                    "size": 8
                },
                "name": "One Half Light + cleartype + vintage(100)",
                "opacity": 100,
                "useAcrylic": false
            },

    ```

  * Dismissing a preview with an unfocused appearance is what's really broken here. That's never going to be able to go back to the original table, because the original table will be replaced with the unfocused appearance's table on the dismiss.
    - Going to fix that by using the focused appearance's table by default for the scheme when there's an unfocused appearance.
  * This is a little janky still, we flash the old schemes through on dismiss, which is probably wrong.