A bit more explanation on wood texture. Download it and view in an svg editor to see the whole figure. An object with a gradient fill is masked, and put over another one. Masking may lack through various renderers -like browser's-. With a good blending setup it can be achieved easier.
wood texture free icon was designed by Lazur URH for icons Png and presented to its users.
Lazur URH
12/4/2017