PayPal button display

Dear,
 
Now I am setup well with PayPal. I find there is cannot show the Yellow PayPal button when doing checkout process in Chinese Language. But I find the button showing well in English Language as below screen. Please kindly advise. Thanks.
 
English Language:
 
 
Chinese Language:

Hi Louie, did you modify themes? Or is this all out of the box Smartstore 5.0.5 plus Hotfixes? Greetings Stefan

Dear Stefan Mueller,

Thanks.

I only modify the theme by below comment to _colorpicker.scss according to advise here.

The previous 5.05 version also appeared in the case that the PayPal payment button was not displayed in Chinese, and it was just updated to the latest 5.10 version, and it is still the same. I didn't make any changes。