# Add color selector slot **URL:** \ **Category:** Enhancements\ **Created:** [April 3, 2023, 11:44am UTC](https://wled.discourse.group/t/add-color-selector-slot/7933 "2023-04-03T11:44:10Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![mehranviva](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/mehranviva/32/4842_2.png) [@mehranviva](https://wled.discourse.group/u/mehranviva)\ **Post date:** [April 3, 2023, 11:44am UTC](https://wled.discourse.group/t/add-color-selector-slot/7933/1 "2023-04-03T11:44:10Z")
hi plz help me add some color selector slots instead of 3 my problem is when i add slots in html code this error appearing `TypeError: Cannot read properties of undefined (reading '0')` i think needs some edit in index.js and json.cpp thanks for your help ---
**Author:** ![rbjohnson78](https://avatars.discourse-cdn.com/v4/letter/r/9dc877/32.png) [@rbjohnson78](https://wled.discourse.group/u/rbjohnson78)\ **Post date:** [April 6, 2023, 3:17pm UTC](https://wled.discourse.group/t/add-color-selector-slot/7933/2 "2023-04-06T15:17:55Z")
This would be a nice addition for everyone. I hope you get it to work, or it gets implemented. I was just looking at how to do this, but I have no clue on how programming/coding works for this. ---
**Author:** ![blazoncek](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/blazoncek/32/1886_2.png) [@blazoncek](https://wled.discourse.group/u/blazoncek)\ **Post date:** [April 7, 2023, 4:17am UTC](https://wled.discourse.group/t/add-color-selector-slot/7933/3 "2023-04-07T04:17:40Z")
Why? None of the effects use anything beyond 3 colors. ---
**Author:** ![mehranviva](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/mehranviva/32/4842_2.png) [@mehranviva](https://wled.discourse.group/u/mehranviva)\ **Post date:** [April 7, 2023, 8:37am UTC](https://wled.discourse.group/t/add-color-selector-slot/7933/4 "2023-04-07T08:37:33Z")
Because of some new custom effects i want to add