themes/bthree/src/styles/_base.sass

@@ -196,7 +196,7 @@ $page-card-icon-size: 7.8rem
             flex-direction: column
 
           .feature-image img
-            margin: 0 auto 0 -6rem
+            margin: 0 auto 0 -9.6rem
 
         .feature-details
           +margin(3, y)
@@ -420,3 +420,7 @@ ul.checklist
 
 body.is-lightbox-active
   overflow: hidden
+
+/* Web Assets Overrides. TODO: move to separate partial */
+.cards-item-title
+  font-size: var(--fs-h4)

themes/bthree/theme.json

@@ -154,30 +154,30 @@
       "textDecoration": false,
       "textTransform": false,
 			"fontSizes": [
-				{
-					"fluid": {
-						"min": "0.875rem",
-						"max": "1rem"
-					},
-					"size": "1rem",
-					"slug": "small"
-				},
-				{
-					"fluid": {
-						"min": "1rem",
-						"max": "1.125rem"
-					},
-					"size": "1.125rem",
-					"slug": "medium"
-				},
-				{
-					"fluid": {
-						"min": "1.75rem",
-						"max": "1.875rem"
-					},
-					"size": "1.75rem",
-					"slug": "large"
-				}
+        {
+          "fluid": {
+            "min": "1.4rem",
+            "max": "1.6rem"
+          },
+          "size": "1.6rem",
+          "slug": "small"
+        },
+        {
+          "fluid": {
+            "min": "1.6rem",
+            "max": "1.8rem"
+          },
+          "size": "1.8rem",
+          "slug": "medium"
+        },
+        {
+          "fluid": {
+            "min": "2.8rem",
+            "max": "3rem"
+          },
+          "size": "2.8rem",
+          "slug": "large"
+        }
 			]
     },
     "blocks": {