Original buttons: https://opengameart.org/content/various-gui-elements-part-2

I really liked these buttons that brightretro designed and decided to make some vector versions, as they would be more easily scaled and better for mobile games (or if you just needed a bigger size than was provided).  I made a few different bar lengths since it would be tricky to change that if you're not familiar with Inkscape.  If you need help getting a custom length, let me know and I'll walk you through the steps :)