default on config load

src/trap/laser.rs

@@ -118,9 +118,14 @@ pub struct DacConfig{
     // pub homography: Mat3,
     pub source: StreamSource,
     pub filters: PointFilters,
+    #[serde(default = "default_layers_enabled")]
     pub layers_enabled: u8,
 }
 
+fn default_layers_enabled() -> u8 {
+    0b1111_1111
+}
+
 #[derive(Serialize, Deserialize, Clone, Debug, PartialEq)]
 pub enum StreamSource {
     Disabled,