Transparent accent color

Question

I want to mark some elements (rectangles and ellipses) from accent color to transparent using LinearGradientBrush. However, a transparent color is always a color, and it seems that the color "Transparent" # 00FFFFFF is white with an opacity of 0%.

I want to disappear from PhoneAccentColor to PhoneTransparentAccentColor. Therefore, if my accent color is red, I would like to fade to # 00FF0000, and if it is green, I would like to fade to # 0000FF00.

I can’t find any built-in color resource for a transparent accent, so what are my options here? I tried the options below, but without real success, and I can’t find much on this topic with the usual search channels, so I'm not quite sure what I am missing here.

Some suggestions that I came up with (but without real success, as mentioned earlier):

• Create your own resource in the code behind and paste it into a wide application resource dictionary?
• Can I open a property on my ViewModels with Color and associate it?

Answer 1

I cannot think of a way to specify a transparent accent color directly using xaml. I have several possible solutions.

If possible, you can animate the opacity of the object, not the color itself.

You can generate color in the code (perhaps during startup)

var accentColor = (Color)Application.Current.Resources["PhoneAccentColor"];
var transparentAccentColor = accentColor.A = 0;

Then you can save the color as a resource and specify it in xaml.

Application.Current.Resources.Add("TransparentPhoneAccentColor", transparentAccentColor);

Hope this helps.

Answer 2

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OpacityMask LinearGradientBrush, .

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