code refactor

src/lib/color.js

@@ -0,0 +1,16 @@
+export function getColorsInRows(allColorInfos, itemPerRow) {
+    const ret = [];
+    let rowCount = -1;
+
+    for (let i = 0; i < allColorInfos.length; i++) {
+        if (i % itemPerRow === 0) {
+            ret[++rowCount] = [];
+        }
+
+        ret[rowCount].push({
+            color: allColorInfos[i]
+        });
+    }
+
+    return ret;
+}