I have a task to do a border radius button like in a classic CSS using border radius. I've been
thinking for a while but nothing comes to my mind. Should I take a bitmap already created with
it and use it as a background of a button or maybe there is another way how to draw it ?
Thank you in advanced !
Try in this forum https://community.roku.com/t5/Roku-Developer-Program/bd-p/roku-developer-program you will not get answers for scenegraph channels here.
Brightscript/scenegraph has no css equivalent. You will have to use an image but you can use 9 patch images. you could so something with draw2d api but that could get complicated and slow to draw.