color scheme help

Can not figure out where to change the color for the following.

For example in this bit of code ($this->getRequest()->isPost()) the isPost() is colored something like peach and when hovering over the text the IDE says "Method not found in class". Every time when there's a "Method not found in class" or "Field not found in class" it is theis peach color and I can not find where to change it in the color scheme.

Anyone know what to change in the Colors & Fonts?

Thanks