The plural of 'pixel' is 'pixels' (https://en.wiktionary.org/wiki/pixels). (Code, 2 lines)
Jun 18th 2016 #1 Affected App WoltLab Suite Core The plural of 'pixel' is 'pixels' (https://en.wiktionary.org/wiki/pixels). Diff - <item name="wcf.acp.option.suffix.pixel"><![CDATA[Pixel]]></item> + <item name="wcf.acp.option.suffix.pixel"><![CDATA[Pixels]]></item>