fix: export "is" functions

color/is/mod.ts

@@ -0,0 +1,4 @@
+// Copyright 2023 mineejo. All rights reserved. MIT license.
+
+export { isRgb } from "./isRgb.ts";
+export { isRgba } from "./isRgba.ts";

color/mod.ts

@@ -2,5 +2,7 @@
 
 export { rgbColorWheel } from "./rgb_color_wheel.ts";
 
+export * from "./is/mod.ts";
+
 export type { Rgb } from "./rgb.ts";
 export type { Rgba } from "./rgba.ts";

mod.ts

@@ -12,5 +12,6 @@ export { AdvancedColor } from "./advanced_color.ts";
 export { ColorComponent } from "./color_component.ts";
 
 export * from "./color_effects/mod.ts";
+export * from "./color/is/mod.ts";
 
-export type * from "./color/mod.ts";
+export type { Rgb, Rgba } from "./color/mod.ts";