I need the code for the button and the knob

Hi, I have some old android tab and they are not compatible with theme… BUT I can force css ! my issu is I can change the background to transparent through css but it does’nt affect button and knob … So my idea is to create my own one !

I know if I check here I could find some part of code that I need but may be one of you have already some .json that fit my need


The original code is there:

… I can’t find what I need