Created attachment 142802 [details]
format cell Font colors list

## Steps to reproduce
* open a spreadsheet of a text document
* menu Format > Cells of Format > Character
* select the "Font Effects" tab
* click on the "Font color" list
* try to click on a color, for example a grey color

## Actual behaviour

* the selected color is below the pointed color. In this example a yellow or green color

## Expected behaviour

* the pointed color should be selected


## General server configuration

**Operating system:** Linux 3.10.0-693.21.1.el7.x86_64 Centos 
CentOS Linux release 7.4.1708 (Core) 

**Webserver:** Apache/2.4.6 (CentOS)

**Database:** mysql 5.5.56

**PHP version:** 7.2.5
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**LibreOffice Online version:** Collabora Online 3.2.2

**Nextcloud version:** 13.0.4

** richdocuments version:**  2.0.9