[Feature Requeest] White SVG not visible, add chessboard on the background

[Иван Вольнов]

just add a checkerboard texture to the transparent areas of svg, then people will have an understanding that where chess, and all icons will be visible, including white ones, and even translucent

[Karey Higuera]

This issue has been brought up here: #15

[matt wilkie]

closing in favour of the older issue