updating test maps

kiln-core/src/glyph.rs

@@ -116,6 +116,10 @@ impl Glyph {
     pub const fn is_visible(&self) -> bool {
         self.tile != '\0'
     }
+
+    pub fn is_transparent(&self) -> bool {
+        self == &Self::transparent()
+    }
 }
 
 /// The `tile` value for a glyph that draws nothing — the `serde` default, used

kiln-core/src/tile.rs

@@ -215,6 +215,7 @@ pub struct SensorSpec {
     pub y: usize,
     #[serde(default, skip_serializing_if = "Option::is_none")]
     pub script: Option<String>,
+    #[serde(default, skip_serializing_if = "Glyph::is_transparent")]
     pub glyph: Glyph,
     #[serde(flatten, default)]
     pub optics: Optics,