Text Color Bleeding Out of Outline

[myokeeh]

I have an app that displays text over an image that's rotated at varying angles. To contrast the text, I outline it with a darker color (black).

I've managed to get the effect I want except for something undesired. Sometimes, the text color bleeds out of the outline and I can't figure out why. It does better on different scales, FontSize, and angles. Is there a better way to do this? Is there something I can change in the existing code easily?

string datetimetext = datetim.ToString("MMM d");
var fontsize = 50;
CanvasTextFormat textFormat = new()
{
    FontWeight = Windows.UI.Text.FontWeights.Bold,
    FontFamily = "Segoe UI Variable",
    FontSize = fontsize * scaleFactor,
    Direction = CanvasTextDirection.LeftToRightThenTopToBottom,
};
CanvasTextLayout textLayout = new(clds, datetimetext, textFormat, 1000, 100);

clds.DrawText(datetimetext
    , new Vector2(...),
    Color.FromArgb(200, 255, 255, 255), textFormat);
CanvasStrokeStyle dashedStroke = new()
{
    DashStyle = CanvasDashStyle.Solid
};

clds.DrawGeometry(CanvasGeometry.CreateText(textLayout),
    new Vector2(...),
    Color.FromArgb(200, 0, 0, 0), 2 * scaleFactor, dashedStroke);

[myokeeh]

Anyone?

[myokeeh]

@getrou any ideas?