diff --git a/src/openflexure_microscope_server/background_detect.py b/src/openflexure_microscope_server/background_detect.py
index a3a6fa82..d57b7c6b 100644
--- a/src/openflexure_microscope_server/background_detect.py
+++ b/src/openflexure_microscope_server/background_detect.py
@@ -204,7 +204,7 @@ class ColourChannelDetectLUV(BackgroundDetectAlgorithm):
         sample_coverage = self.get_sample_coverage(image)
 
         is_sample = sample_coverage > self.settings.min_sample_coverage
-        message = f"{sample_coverage}% sample"
+        message = f"{sample_coverage:0.1f}% sample"
         if not is_sample:
             message = "only " + message
         return is_sample, message
diff --git a/src/openflexure_microscope_server/things/smart_scan.py b/src/openflexure_microscope_server/things/smart_scan.py
index c830c93c..edfd1067 100644
--- a/src/openflexure_microscope_server/things/smart_scan.py
+++ b/src/openflexure_microscope_server/things/smart_scan.py
@@ -1,7 +1,7 @@
 """The core sample scanning functionality for the OpenFlexure Microscope.
 
 SmartScan provides sample scanning functionality including automatic background
-detection (via the `CameraThing`) and automatic path planning via
+detection (via the ``CameraThing``) and automatic path planning via
 `scan_planners`. It manages the directories of past scans via `scan_directories`.
 It also controls external processes for live stitching composite images, and
 the creation of the final stitched images.
diff --git a/webapp/src/components/tabContentComponents/backgroundDetectComponents/paneBackgroundDetect.vue b/webapp/src/components/tabContentComponents/backgroundDetectComponents/paneBackgroundDetect.vue
index 28eb4c21..ab23529a 100644
--- a/webapp/src/components/tabContentComponents/backgroundDetectComponents/paneBackgroundDetect.vue
+++ b/webapp/src/components/tabContentComponents/backgroundDetectComponents/paneBackgroundDetect.vue
@@ -44,17 +44,12 @@ export default {
   },
 
   methods: {
-    alertBackgroundFraction(r) {
-      let fraction = r.output;
-      // let percentage = (fraction * 100).toFixed(0);
-      this.modalNotify(`Current image is ${fraction.toFixed(0)}% background.`);
-    },
     alertBackgroundSet() {
       this.modalNotify(`Background image has been updated`);
     },
     alertImageLabel(r) {
       let label = r.output[0] ? "sample" : "background";
-      this.modalNotify(`Current image is ${label}, as ${r.output[1]}`);
+      this.modalNotify(`Current image is ${label} (${r.output[1]})`);
     },
     backgroundDetectError() {
       this.modalError(