I am new to VectorDrawables.
I can see that the default vector drawables provided with android studio like ic_menu_gallery,
Here is the best method to convert any png/jpg into vector drawable:
Download the software InkScape
Open your png in it and follow the procedure shown in the video to convert it to svg
The use the SVG to Vector Drawable tool to convert the svg to vector drawable. The other tool svg2android does not always work as sometimes the svg gets improperly converted to a vector drawable
Copy the code into a new drawable resource file. Now this can be used as a regular drawable.
If you already have a svg then start straightaway from step 3.