code refactor

src/filters/accountIconStyle.js

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+import colorConstants from '../consts/color.js';
+
+export default function (color, defaultColor) {
+    if (color && color !== colorConstants.defaultAccountColor) {
+        color = '#' + color;
+    } else {
+        color = defaultColor;
+    }
+
+    return {
+        color: color
+    };
+}

src/filters/categoryIconStyle.js

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+import colorConstants from '../consts/color.js';
+
+export default function (color, defaultColor) {
+    if (color && color !== colorConstants.defaultCategoryColor) {
+        color = '#' + color;
+    } else {
+        color = defaultColor;
+    }
+
+    return {
+        color: color
+    };
+}

src/filters/defaultIconStyle.js

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+import colorConstants from '../consts/color.js';
+
+export default function (color, defaultColor) {
+    if (color && color !== colorConstants.defaultColor) {
+        color = '#' + color;
+    } else {
+        color = defaultColor;
+    }
+
+    return {
+        color: color
+    };
+}

src/filters/iconStyle.js

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+import defaultIconStyle from "./defaultIconStyle.js";
+import accountIconStyle from "./accountIconStyle.js";
+import categoryIconStyle from "./categoryIconStyle.js";
+
+export default function (color, iconType, defaultColor) {
+    if (iconType === 'account') {
+        return accountIconStyle(color, defaultColor);
+    } else if (iconType === 'category') {
+        return categoryIconStyle(color, defaultColor);
+    } else {
+        return defaultIconStyle(color, defaultColor);
+    }
+}