Clear the background to white before rendering the scene. This means that we will be able to make layers use the correct "initial" value for background-color of transparent, which fixes specifying the background color for iframes.
Clear the background to white before rendering the scene. This means
that we will be able to make layers use the correct "initial" value
for background-color of transparent, which fixes specifying the
background color for iframes.

glennw/rust-layers,mrobinson/rust-layers