# Incrementing/Decrementing Color Brightness

**URL:** <https://discourse.processing.org/t/incrementing-decrementing-color-brightness/8378>\
**Category:** Coding Questions\
**Created:** [February 13, 2019, 9:01pm UTC](https://discourse.processing.org/t/incrementing-decrementing-color-brightness/8378 "2019-02-13T21:01:47Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![kll](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/kll/32/964_2.png) [@kll](https://discourse.processing.org/u/kll)\
**Post date:** [February 14, 2019, 1:29am UTC](https://discourse.processing.org/t/incrementing-decrementing-color-brightness/8378/3 "2019-02-14T01:29:53Z")

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there is a easy way for “edit” variables like color…  
by mouse wheel,  
where you combine it with a keypressed, pls check

> [@Mousewheel\_plusplus](https://discourse.processing.org/t/mousewheel-plusplus/5839/5):
>
> 3 slider move ( Y, X, Rotate ) 3 slider object size ( Y, X, Stroke ) 1 slider object select list ( example ellipse/rectangle/triangle ) 9 slider HSB fill / stroke / background ( using like [b] hue [B] sat [Alt][b] brt ) 
> 
> > **code**
> >
> > // file: mousewheel\_plusplus.pde // system win 7 processing 3.4 // by KLL // v0.1 https://discourse.processing.org/t/mousewheel-plusplus/5839 // v0.2 help default and timer --\> blog // v0.3 π was rotating // v0.4 Lexyth / move X missing! use CTRL scr…

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