Favicon and centered images

[LF3090]

I observed two little issues on my project sphinx documentation using this theme.

1. Image directives (.. image::) with the field :align: center do not appear on the center but are padded to the left of the page.

2. If i include a favicon with field html_favicon = 'path\image.ico' on the file conf.py it is not shown on the tab of my browser as opposed with other sphinx themes.

I uploaded a minimal working example on https://github.com/LF3090/Sphinx_mwe.

Thanks for your help.