Can Ceramic tiles in a shower be painted?

You would not be able to paint tiles in a shower with Annie Sloan chalk paint. Check this out: https://www.hometalk.com/diy/bathroom/showers-tubs/how-to-paint-tile-the-easy-way-34176457

It doesn't work well at all. Been there done that. Used a product called gripper before painting. It still comes off if scratched or will slide. This happens because the heat from the shower softens the paint. Found a tub surround for $99.00 at Home Depot. It is thin so you can easily cut the spots you need with a sharp utility blade. Just make sure they are smaller than the plate covers. Follow the directions and you can handle it. I'm 60 year old female and if I can do it anyone can.

Alike concrete, Ceramic Tiles are absorbent only until these are sealed. Hence why ceramic mugs alliw condensation to escape. As concrete, ceramic tiles can be painted with an exterior paint, but as these are already water-sealed, you cannot use concrete colorants or dyes.

Although you can never fully restore the initial absorbency if ceramic tile, you actually can restore it enough to deep color the tile.

To do a deep coloration, you need to eat away the sealant.

Because that involves acids mire powerful than water, you not only need be very careful amin handling and protection and safety, you are also thus better off pulling these out, to just soak these by a bath in an acid wash concrete colorant, which will eat away at the sealant given time, but also while it bathes the acid will wash it to a new color of your choice during that bath.

You will notice that color changing, and need to time the first tile, to keep an eye on the clock for the rest done in larger batches, so that you get an improved consistency of color all throughout the project in entire.

After that bath you need to wash each gently with a rag in a bucket with ivory soap and water.

After those dry by air, [or you pat them dry with a soft cloth] and you like the results, you need to adhere those back where they were, and of course apply a new sealant because the acid ate away most if not all of the sealant former.

Although Same method can apply more limitedly for taking off paint from ceramic tile, [because you get paint from the tile in the acids], because of the increased qty of acids you will need to prevent residuals of the old pain from seeping in, during that bath, really, you should always think twice before painting ceramic in any obscure colors.

I know this works.

Good luck with the project.