# Color changes can't be previewed?

**URL:** <https://meta.discourse.org/t/color-changes-cant-be-previewed/24739>\
**Category:** Product Support\
**Created:** [2. Februar 2015 um 20:50 UTC](https://meta.discourse.org/t/color-changes-cant-be-previewed/24739 "2015-02-02T20:50:52Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![DeanMarkTaylor](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/deanmarktaylor/32/102462_2.png) [@DeanMarkTaylor](https://meta.discourse.org/u/DeanMarkTaylor)\
**Post date:** [2. Februar 2015 um 15:32 UTC](https://meta.discourse.org/t/color-changes-cant-be-previewed/24739/4 "2015-02-02T15:32:28Z")

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> [@Letting users select different themes](https://meta.discourse.org/t/letting-users-select-different-themes/12624/13):
>
> but only one CSS/HTML should be enabled at once - (unless it’s been addressed)

> [@Letting users select different themes](https://meta.discourse.org/t/letting-users-select-different-themes/12624/14):
>
> I thought @sam fixed that recently?

I run multiple `CSS/HTML` items at the same time, one with theme, another with ads, another with fixes for known bugs, another that adds menu items. Works for me.

So allowing the user to select would mean configuring it to merge multiple `CSS/HTML` items into a single ID / GUID, where currently the ID is a single GUID for a single `CSS/HTML` item.

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