This is a simple 17x15mm button for a 12x13mm hole using a flashlight switch 12x8mm.

The button I used is in this link to Ali express: flashlight button link

Building it:

To print in hard plastic, depending on what you are doing, PLA, PETG, ASA, etc.

1.-Insert the switch in the “Enclosure”

2.-Insert switch+enclosure in the hole with a bit of force

3.-Glue the lid to the top of the button

There are 3 files for the lid:

a) Lid_v9 is a STL which can be used with multicolor printers to color the I/O icon.

b)Lid_v8 is a STL with a hole for the I/O logo and then you can print the IO.STL in a different color and insert/glue in.

I like printing the lid in a texture plate to give a better look, but it's all aesthetics.