Here are 2 workflows that contain the node CR Color Bars:

1.

Size: 28463 bytes

URL: https://github.com/Suzie1/ComfyUI_Comfyroll_CustomNodes/blob/d78b780ae43fcf8c6b7c6505e6ffb4584281ceca/workflows/Graphics/Pattern/CR_gradient_nodes_demo1.json

2.

Size: 97951 bytes

URL: https://github.com/PeterTemps/UbuntuScripts/blob/44dd8db141326937b73a7642f54e6051fb714b97/comfyui/workflows_civitai/faceSwapFor2PeopleWith_faceSwapFor2V20/swap_2_face_new_ipa_workflow.json