For the demonstration store I'm building, I have chosen to use the New Standard theme. For my own tastes, it's a beautiful clean theme with plenty of nice features. Plus it's free so you can follow along with the examples I give.
Let's return to the theme store. In your admin,click on Themes in the navigation panel and then on the Visit the Theme Store button at the top-right. In the theme store, do a quick search for "standard" to find the New Standard theme. Click into the description page for the theme (see above). You've already seen the New Standard theme but there are quite a few features you haven't seen yet. Take a look through the theme information, take a look at the theme demo store and read about the theme features.
Let's install the New Standard theme: don't worry if you already have it, Shopify will just install a second copy. To do so return to the theme description page and click the Get Theme button. If at this stage you were installing a paid theme, you would now need to approve that it be charged to your account. On a separate note, remember that when you install a theme, all of the theme's styles will come with it. New Standard however has only one style.
Next, you will need to confirm the installation of the theme. You can click the main button Publish as my shop's theme to publish the theme straight away to your storefront. Or below the button, there are text links to download the theme as a .zip or to install as an unpublished theme. In both cases, you can put the theme live on your storefront later.
I'm going to publish the theme direct as my main theme as I have a new store with no customers yet. You will have to confirm a second time that you understand that the theme will become your current main theme. The installation may take a few minutes. When it's complete, click on the button Go to your Theme Manager.
This
will bring you back to the themes section in your admin. You can,
of course, get to this page anytime in your admin by clicking
Themes in the navigation panel. Here you can see the
themes that are installed for your store. You can see in the
screenshot above, I have the newly installed "New Standard" theme
as the published theme, and I have the "radiance" theme that came
with my store as an unpublished theme.
At the top right, you'll see buttons to Upload a theme and
Visit the Theme Store. We already looked at the theme
store. Using the other button, you can upload a theme in the form
of a .zip file. You might upload a theme if you were working on a
theme locally on your computer or if you purchased a theme outside
of the theme store.
The main part of the page is split in two: published themes and
unpublished themes:
For each theme installed, there is a set of controls offering the
following: