fix icon size in button

Author: olton

lib/metro.all.css

@@ -39775,7 +39775,7 @@ input[type=submit] .icon,
 input[type=reset] .icon,
 .button .icon,
 .flat-button .icon {
-  height: calc(var(--button-size)/2);
+  height: calc(var(--control-height)/2);
   font-size: calc(var(--button-font-size) * 1.2);
   display: flex;
   align-items: center;

lib/metro.all.css.map

@@ -39775,7 +39775,7 @@ input[type=submit] .icon,
 input[type=reset] .icon,
 .button .icon,
 .flat-button .icon {
-  height: calc(var(--button-size)/2);
+  height: calc(var(--control-height)/2);
   font-size: calc(var(--button-font-size) * 1.2);
   display: flex;
   align-items: center;

lib/metro.css

@@ -62,7 +62,7 @@ input[type="reset"],
     }
 
     .icon {
-        height: calc((var(--button-size)/2));
+        height: calc((var(--control-height)/2));
         font-size: calc(var(--button-font-size) * 1.2);
         display: flex;
         align-items: center;