# Development

**URL:** https://openrndr.discourse.group/c/dev/17.md

[Latest](https://openrndr.discourse.group/latest.md) · [Categories](https://openrndr.discourse.group/categories.md)

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## [About the Development category](https://openrndr.discourse.group/t/about-the-development-category/551)

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**Author:** [@abe](https://openrndr.discourse.group/u/abe)\
**Replies:** 0

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Topics related to developing openrndr, orx, the template, the guide. To be able to ask advanced users to test code in various OSes or hardware before publishing it to everyone.

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## [Possible bug related with the Slider default Range and Value](https://openrndr.discourse.group/t/possible-bug-related-with-the-slider-default-range-and-value/647)

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**Author:** [@gonza6g](https://openrndr.discourse.group/u/gonza6g)\
**Replies:** 5\
**Last updated:** [April 4, 2024, 5:45pm UTC](https://openrndr.discourse.group/t/possible-bug-related-with-the-slider-default-range-and-value/647 "2024-04-04T17:45:09Z")

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Hi everyone, I have the following code to setup a Slider, pay attention to the default value 33.50 and the range going from 0.0 to 100.0: extend(ControlManager()) { layout { slider { …

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## [Missing "program.deltaSeconds" and "program.deltaTime"](https://openrndr.discourse.group/t/missing-program-deltaseconds-and-program-deltatime/559)

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**Author:** [@LH99](https://openrndr.discourse.group/u/LH99)\
**Replies:** 1\
**Last updated:** [May 9, 2023, 10:52am UTC](https://openrndr.discourse.group/t/missing-program-deltaseconds-and-program-deltatime/559 "2023-05-09T10:52:27Z")

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I seem to not be able to use program.deltaSeconds and program.deltaTime anymore. When I based my project on the template back in Dec22 it was accessable. In the current openrndr-template they are not available as progr…