Texture2D Transparent

So, I’m trying to make a menu that has a left panel with a slightly transparent background, at the moment, I’m attempting to draw a background and I’m unable to make this transparent, I made a black image, with 80% opacity imported as a TGA and stored it in a Texture2D pointer(Texture2D*)
All this is in the DrawHUD() override function at the moment.

	Super::DrawHUD();
	float WidthPercentage = 25.0f;
	float HeightPercentage = 100.0f;

	const FVector2D Center(0, 0);
	const FVector2D Position(0, 0);
	FVector2D ScaleSize(Canvas->ClipX * (WidthPercentage / 100.0f), Canvas->ClipY * (HeightPercentage / 100.0f));
	FCanvasTileItem TileItem(Position, LeftPanel->Resource, FLinearColor::White);
	TileItem.Size = ScaleSize;
	Canvas->DrawItem(TileItem);

So yeah, all I want is a a slightly transparent background for a panel on my game screen.

Thanks in advance!

Worked it out, I used FLinearColor(1.0f, 1.0f, 1.0f, 0.8f) instead of FLinearColor::White
and I set TileItem.BlendMode = SE_BLEND_TRANSLUCENT