Combat base added

shaders/masked_palette_swap.gdshader

@@ -2,9 +2,18 @@ shader_type canvas_item;
 
 uniform sampler2D flag_mask : source_color, hint_default_black;
 uniform vec4 team_color : source_color = vec4(1.0, 0.0, 0.0, 1.0); // red by default
+uniform float chroma_threshold : hint_range(0.0, 1.0) = 0.01;
 
 void fragment() {
-    vec4 base = texture(TEXTURE, UV);
+	vec4 base = texture(TEXTURE, UV);
+
+	// --- Chroma key: discard near-black pixels ---
+	float max_channel = max(base.r, max(base.g, base.b));
+	if (max_channel < chroma_threshold) {
+		discard;
+	}
+
+	// --- Palette swap using masks ---
     float mask = texture(flag_mask, UV).r; // 1.0 on flag pixels, 0.0 on castle
 
     // Use the grey luminance as a brightness multiplier on the team color