Your pack should have appeared in the left window, just hover over it and click on the arrow pointing to the right.zip file you downloaded in the first step to the newly opened 'resourcepacks' folder. – folder titled 'resourcepacks' will pop up On the options menu, click 'Resource Packs.'.
– if there are many different versions, just choose the one you like, is compatible with your version/edition of Minecraft, the one you think your computer can handle in terms of performance. – general recommended step for all packs, Optifine is also needed for most shaders How to install Tropical Fade Resource Pack: