Change the undersized example

no circle, as that then confuses matters with the spacing circles later

understanding/22/target-size-minimum.html

@@ -72,11 +72,11 @@ <h3>Size requirement</h3>
                 <figcaption>So long as there is a solid 24 by 24px square within the target, it meets the size requirement of the criterion and passes (image shown to scale - <a href="img/target-size-skewed.svg">see the scalable original version</a>)</figcaption>
             </figure>
 
-            <p>If a target is not large enough to allow for a 24 by 24px square to be drawn inside it, it is considered <strong>undersized</strong>. It does not pass the primary requirement of the Success Criterion, but if it has sufficient space around it without adjacent targets, it may pass the criterion thanks to the Spacing exception (below).</p>
+            <p>If a target is not large enough to allow for a 24 by 24px square to be drawn inside it, it is considered <em>undersized</em>, and does not pass the size requirement of the Success Criterion. However, if it has sufficient space around it without adjacent targets, it may still pass the criterion thanks to the spacing exception (below).</p>
 
-            <figure id="basic-target-size-circle">
-                <img src="img/target-size-requirement-circle.png" alt="A circle with a diameter of 24px, but not filling up a 24px square." />
-                <figcaption>The rounded corners of the circle do not fill the 24 by 24px square so the target <strong>does not pass</strong> the size requirement of the criterion. However, depending on the spacing to other targets, it may pass by the spacing exception.</figcaption>
+            <figure id="target-size-undersized-rounded">
+                <img src="img/target-size-undersized-rounded.svg" width="250" height="105" alt="A circle with a diameter of 24px, but not filling up a 24px square." />
+                <figcaption>The rounded corners do not leave sufficient space to draw a 24 by 24px square inside the target, making the target <em>undersized</em>. Depending on the spacing to other targets, it may still pass if it has sufficient clearance (image shown at 1:1 and 2:1 scale - <a href="img/target-size-undersized-rounded.svg">see the scalable original version</a>)</figcaption>
             </figure>
 
             <p>The requirement is independent of the zoom factor of the page; when users zoom in the CSS pixel size of elements does not change. This means that authors cannot meet it by claiming that the target will have enough spacing or sufficient size if the user zooms into the page.</p>