Tidy up error and blackout styles on Calendar/DatePicker.

[ButchersBoy]

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[SuicSoft]

@ButchersBoy Can you give more info on this?

[ButchersBoy]

In the WPF calendar you have black out dates. Take a look here: http://www.wpftutorial.net/Calendar.html#blackout

You'll see some dates have crosses through. Basically, I never created a style for those crosses, so we need to "materialize" them. Need to check Google's Material Design specs to see if they have a suggestion, otherwise take a look at some Google apps and see if they do this. Lastly, just come up with something which looks good :)

[SuicSoft]

@ButchersBoy Now I get it. Maybe we can just gray them out instead of putting a X

This is the oldest issue that is still open , so i think it needs a fix

[ButchersBoy]

Yeah, greying them would be cool. I don't even know what it looks like at the moment...

[SuicSoft]

Here's an image i created in GIMP by increasing the brightness on the text using your GIFs. Will look better when in WPF 😃 . The sample is circled in green

Don't know if it's material because i couldn't find any apps with the date picker and disabled dates on Android Lollipop 5.0.1. So I just thought of this idea