migrate color / icon select to typescript

src/core/color.ts

@@ -2,7 +2,7 @@ import type { TypeAndName } from './base.ts';
 
 export type ColorValue = string;
 
-export interface ColorInfo {
+export interface ColorInfo extends Record<string, unknown> {
     readonly color: ColorValue;
 }
 

src/core/icon.ts

@@ -1,10 +1,10 @@
 export type LineAwesomeIconClassName = string;
 
-export interface IconInfo {
+export interface IconInfo extends Record<string, unknown> {
     readonly icon: LineAwesomeIconClassName;
 }
 
-export interface IconInfoWithId {
+export interface IconInfoWithId extends IconInfo {
     readonly id: string;
     readonly icon: LineAwesomeIconClassName;
 }