fix

app/design/frontend/Joshine/breeze/etc/view.xml

@@ -97,7 +97,7 @@
 
             <image id="swatch_image" type="swatch_image">
                 <width>40</width>
-                <height>50</height>
+                <height>40</height>
             </image>
 
             <!-- These lists use category_page_grid fallback. Not need to declare srcset for them -->

app/design/frontend/Joshine/breeze/web/css/_custom.less

@@ -1657,10 +1657,10 @@ button.action.submit.primary {
   }
 
 }
-.swatch-option.color, .swatch-option.text, .swatch-option.image{
-  width: 40px !important;
-  height: 40px !important;
-}
+//.swatch-option.color, .swatch-option.text, .swatch-option.image{
+//  width: 40px !important;
+//  height: 40px !important;
+//}
 
 //色块强制大小
 #product-options-wrapper .swatch-option.image{

app/design/frontend/Joshine/breeze/web/js/breeze/components/swatch-renderer.js

@@ -509,7 +509,8 @@
                 } else if (type === 2) {
                     // Image
                     html += '<div class="' + optionClass + ' image" ' + attr +
-                        ' style="background: url(' + value + ') no-repeat center; background-size: initial;' + '">' + '' +
+                        ' style="background: url(' + value + ') no-repeat center; background-size: initial;width:' +
+                        swatchImageWidth + 'px; height:' + swatchImageHeight + 'px">' + '' +
                         '</div>';
                 } else if (type === 3) {
                     // Clear