diff --git a/web/src/data/config.ts b/web/src/data/config.ts
index d6f3283..d72edde 100644
--- a/web/src/data/config.ts
+++ b/web/src/data/config.ts
@@ -70,6 +70,10 @@ const allIndicators: Map<IndicatorName, Indicator> = new Map([
     ["air_quality", {
         // This is an actual prose name of the indicator used in the UI.
         "short": "Air pollution",
+        // This is used in the map hover text. Generally you'll want this to be
+        // the same as 'short', but in the original DemoLand app 'accessibility'
+        // is condensed to 'access.' to save space.
+        "hover": "Air pollution",
         // 'less' and 'more' are used in the charts to describe what smaller and
         // larger values mean respectively.
         "less": "cleaner",
@@ -87,6 +91,7 @@ const allIndicators: Map<IndicatorName, Indicator> = new Map([
     }],
     ["house_price", {
         "short": "House prices",
+        "hover": "House prices",
         "less": "cheaper",
         "more": "more expensive",
         "less_diff": "decreased",
@@ -96,6 +101,7 @@ const allIndicators: Map<IndicatorName, Indicator> = new Map([
     }],
     ["job_accessibility", {
         "short": "Job accessibility",
+        "hover": "Job access.",
         "less": "lower",
         "more": "higher",
         "less_diff": "decreased",
@@ -105,6 +111,7 @@ const allIndicators: Map<IndicatorName, Indicator> = new Map([
     }],
     ["greenspace_accessibility", {
         "short": "Greenspace accessibility",
+        "hover": "Greenspace access.",
         "less": "lower",
         "more": "higher",
         "less_diff": "decreased",
diff --git a/web/src/types.ts b/web/src/types.ts
index 00dcd5d..71bbc29 100644
--- a/web/src/types.ts
+++ b/web/src/types.ts
@@ -2,7 +2,7 @@
 
 export type IndicatorName = "air_quality" | "house_price" | "job_accessibility" | "greenspace_accessibility";
 
-export type Indicator = { short: string, less: string, more: string, less_diff: string, more_diff: string, colormap: string, colormapReversed: boolean };
+export type Indicator = { short: string, hover: string, less: string, more: string, less_diff: string, more_diff: string, colormap: string, colormapReversed: boolean };
 
 /* Model inputs (land use) */
 
diff --git a/web/src/utils/colors.ts b/web/src/utils/colors.ts
index 60bd266..e7e9bfb 100644
--- a/web/src/utils/colors.ts
+++ b/web/src/utils/colors.ts
@@ -2,7 +2,7 @@ import colormap from "colormap";
 import { type IndicatorName, type LayerName, } from "src/types";
 import config from "src/data/config";
 
-export function makeColormap(indicator: IndicatorName | "diff", n: number) {
+export function makeColormap(indicator: IndicatorName | "diff", n: number): string[] {
     if (indicator === "diff") {
         return colormap({
             colormap: "RdBu",
@@ -23,12 +23,11 @@ export function makeColormap(indicator: IndicatorName | "diff", n: number) {
     }
 }
 
-const colormaps: { [key: string]: string[] } = {
-    "air_quality": makeColormap("air_quality", 100),
-    "house_price": makeColormap("house_price", 100),
-    "job_accessibility": makeColormap("job_accessibility", 100),
-    "greenspace_accessibility": makeColormap("greenspace_accessibility", 100),
-    "diff": makeColormap("diff", 100),
+const colormaps: Map<IndicatorName | "diff", string[]> = new Map([
+    ["diff", makeColormap("diff", 100)],
+])
+for (const indiName of config.allIndicators.keys()) {
+    colormaps.set(indiName, makeColormap(indiName, 100));
 }
 
 function getColorFromMap(map: string[], value: number, min: number, max: number) {
@@ -46,14 +45,13 @@ function getColorFromMap(map: string[], value: number, min: number, max: number)
  * @param value The value of the layer in the scenario
  */
 export function getColor(layerName: LayerName, value: number) {
-
     if (layerName === "signature_type") {
         // Categorical variable
         return config.signatures[value].color;
     }
     else {
         // Continuous variables, use the respective colormaps
-        return getColorFromMap(colormaps[layerName], value, config.scale.min, config.scale.max);
+        return getColorFromMap(colormaps.get(layerName), value, config.scale.min, config.scale.max);
     }
 }
 
@@ -81,6 +79,6 @@ export function getDiffColor(layerName: LayerName, value: number, cmpValue: numb
         // Continuous variables, use 'diff' colormap
         return value === cmpValue
             ? "rgba(0, 0, 0, 0.1)"
-            : getColorFromMap(colormaps["diff"], value - cmpValue, -maxDiffExtents.get(layerName), maxDiffExtents.get(layerName));
+            : getColorFromMap(colormaps.get("diff"), value - cmpValue, -maxDiffExtents.get(layerName), maxDiffExtents.get(layerName));
     }
 }
diff --git a/web/src/utils/hover.ts b/web/src/utils/hover.ts
index ed7fb2d..b887749 100644
--- a/web/src/utils/hover.ts
+++ b/web/src/utils/hover.ts
@@ -63,10 +63,7 @@ function makeHoverHtml(feat: GeoJSON.Feature,
                 }${Math.abs(chg).toFixed(1)}%)`;
         }
         return [
-            `<span>${indi.short.replace(
-                "accessibility",
-                "access."
-            )}</span>`,
+            `<span>${indi.hover}</span>`,
             `<span class="right-align-grid-item ${activeFactor === name ? "strong" : ""
             }">`,
             activeFactor === name ? `${makeColoredBlock(color)}&nbsp;` : ``,
diff --git a/web/src/utils/scenarios.ts b/web/src/utils/scenarios.ts
index 495244a..1b722dd 100644
--- a/web/src/utils/scenarios.ts
+++ b/web/src/utils/scenarios.ts
@@ -103,12 +103,14 @@ function fromValuesObject(
             valuesMap.set(oa, new Map());
             foundAreaNames.add(oa);
             for (const [key, value] of Object.entries(map)) {
-                if (value === null) {
-                    throw new Error(`Null value found in scenario values for OA '${oa}'.${src}`);
-                }
                 const layerName = key as LayerName;
-                valuesMap.get(oa)
-                    .set(layerName, rescale(layerName, preprocess(value as number), scaleFactors));
+                if (config.allLayers.has(layerName)) {
+                    if (value === null) {
+                        throw new Error(`Null value found in scenario values for OA '${oa}'.${src}`);
+                    }
+                    valuesMap.get(oa)
+                        .set(layerName, rescale(layerName, preprocess(value as number), scaleFactors));
+                }
             }
         }
     }