# Perspective built in themes and trend pen colors

**URL:** <https://forum.inductiveautomation.com/t/perspective-built-in-themes-and-trend-pen-colors/69792>\
**Category:** Ignition\
**Tags:** ignition81, perspective\
**Created:** [February 13, 2023, 8:44pm UTC](https://forum.inductiveautomation.com/t/perspective-built-in-themes-and-trend-pen-colors/69792 "2023-02-13T20:44:37Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![zachary.roisum](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/zachary.roisum/32/42809_2.png) [@zachary.roisum](https://forum.inductiveautomation.com/u/zachary.roisum)\
**Post date:** [February 13, 2023, 8:44pm UTC](https://forum.inductiveautomation.com/t/perspective-built-in-themes-and-trend-pen-colors/69792/1 "2023-02-13T20:44:37Z")

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I have been trying to apply the color variables from Perspective's built in themes to a Power Chart and also a Time Series Chart. The pens keep displaying a dark grey no matter the variable assigned. For example, in the Time Series Chart under properties/plots/0/trends/0/columns/0/color assigning --error or --qual-1 or --success all result in the same grey in both the designer and a running application. This should have made a red, purple, and green pen.

This portion of the manual implies the color property is of the right type to accept a theme variable.  
[https://docs.inductiveautomation.com/display/DOC81/Perspective+Built-In+Themes](https://docs.inductiveautomation.com/display/DOC81/Perspective+Built-In+Themes)

Is there something I should be doing differently?

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**Author:** ![Matthew.gaitan](https://avatars.discourse-cdn.com/v4/letter/m/59ef9b/32.png) [@Matthew.gaitan](https://forum.inductiveautomation.com/u/Matthew.gaitan)\
**Post date:** [February 13, 2023, 8:49pm UTC](https://forum.inductiveautomation.com/t/perspective-built-in-themes-and-trend-pen-colors/69792/2 "2023-02-13T20:49:32Z")

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try wrapping the color variables with `var()`

![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/6/e/6e5f05040220ab4ba2ac1851f1ed5d42bd04601f.png)  
 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/6/f/6ff3c0815e9a3d63c847a0f9fd8682d1be6b8b54.png)

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**Author:** ![zachary.roisum](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/zachary.roisum/32/42809_2.png) [@zachary.roisum](https://forum.inductiveautomation.com/u/zachary.roisum)\
**Post date:** [February 14, 2023, 4:56pm UTC](https://forum.inductiveautomation.com/t/perspective-built-in-themes-and-trend-pen-colors/69792/3 "2023-02-14T16:56:01Z")

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Thanks, that works!