# \#node-red-contrib-image-tools

**URL:** https://discourse.nodered.org/tag/node-red-contrib-image-tools/48.md

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## [Gradient in charts](https://discourse.nodered.org/t/gradient-in-charts/80966)

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**Author:** [@JosuatOM](https://discourse.nodered.org/u/JosuatOM)\
**Replies:** 3\
**Last updated:** [1 September 2023 15:56 UTC](https://discourse.nodered.org/t/gradient-in-charts/80966 "2023-09-01T15:56:16Z")

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Greetings, I have been using different codes and I have this problem with the colored background when graphing, in the "chart-image" node the background of different colors appears but modifying the code to display it wi…

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## [Generating visual code for ws2812b using Node Red](https://discourse.nodered.org/t/generating-visual-code-for-ws2812b-using-node-red/74568)

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**Author:** [@sefaguntepe](https://discourse.nodered.org/u/sefaguntepe)\
**Replies:** 0\
**Last updated:** [1 February 2023 19:15 UTC](https://discourse.nodered.org/t/generating-visual-code-for-ws2812b-using-node-red/74568 "2023-02-01T19:15:03Z")

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Hello, I have an area of 17x17 pixels by creating a matrix with ws2812b. As you know, we use the following format to add images to the code. My purpose: I want to upload the image via NodeRed and send the relevant HEX c…

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## [Lines over a picture (edit picture) cont](https://discourse.nodered.org/t/lines-over-a-picture-edit-picture-cont/73500)

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**Author:** [@magnusso](https://discourse.nodered.org/u/magnusso)\
**Replies:** 3\
**Last updated:** [11 January 2023 11:23 UTC](https://discourse.nodered.org/t/lines-over-a-picture-edit-picture-cont/73500 "2023-01-11T11:23:52Z")

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As a continuation to https://discourse.nodered.org/t/lines-over-a-picture-edit-picture/32567, in node-red-contrib-image-tools is there some straightforward way to draw a diagonal line from a point x1,y1 to x2, y2?