Ananta Code Academy
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MODULE 01 · FOUNDATIONS

Choosing & Installing a Theme

Your theme controls how every page looks before you write a single line of custom CSS. Today you'll learn how to evaluate one properly and get it installed.

Day 4 of 30 Beginner ~18 min
01 · OVERVIEW

What a Theme Actually Controls

A WordPress theme controls the visual presentation of your site — layout, typography, colors, and how your content is arranged on the page. It does not control your content itself; posts and pages stay exactly the same if you switch themes.

This separation is one of WordPress's core strengths: you can completely redesign a site by changing themes without touching a single post or page.

02 · WHERE THEMES COME FROM

Free vs Premium Themes

Themes come from a few different sources, each with real tradeoffs worth understanding before you commit to one.

SOURCE WHAT TO EXPECT
WordPress.org repo

Free, reviewed for security, and searchable directly inside your dashboard. The safest starting point for beginners.
Premium marketplaces

Sites like ThemeForest sell paid themes with more design options and built-in support — good once you know exactly what you need.
Theme shops

Companies like Astra or GeneratePress sell focused, lightweight themes built for performance and easy customization.
FOR THIS COURSE

Stick to the WordPress.org repository for now. It's free, safe, and has thousands of well-built options — no need to spend money yet.

03 · WHAT MAKES A THEME "GOOD"

Evaluating a Theme Before You Install It

Don't judge a theme purely on its demo screenshot — check these signals first, all visible right from the theme listing.

theme-checklist.txt 
// What to check before installing a theme
1. Last updated    // avoid anything untouched for 12+ months
2. Active installs // higher numbers = more battle-tested
3. Rating & reviews// read a few recent ones, not just the average
4. Block editor support // confirm it works with Gutenberg (Day 9)
04 · INSTALLING A THEME

From Search to Active Theme

Installing a theme from the repository takes only a few clicks inside your dashboard.

  • Go to Appearance → Themes and click "Add New Theme."
  • Search or filter — use keywords like "portfolio" or "business," or filter by Popular/Latest.
  • Preview before installing — click a theme's thumbnail to see a live preview with your own content.
  • Click Install, then Activate — this replaces your current theme immediately.
  • Check your site's front end to confirm the new design has taken effect.
    • 05 · CLASSIC VS BLOCK THEMES

    Two Different Theme Architectures

    WordPress now supports two theme types, and it matters which one you pick — you'll revisit this distinction on Day 12 with the Site Editor.

    CLASSIC THEME Layout is defined in PHP template files. Customization happens mostly through the Customizer and theme options panels.
    BLOCK THEME (FSE) Layout is built entirely from blocks, editable directly in the Site Editor — more flexible, no template-file editing required.
    06 · COMMON MISTAKES

    What Trips Up First-Time Theme Choices

    WATCH OUT FOR
    BLOAT Themes bundled with dozens of unused features slow your site down — simpler is usually better.
    DEMO MISMATCH A polished demo often relies on plugins and sample content the free theme doesn't actually include.
    LOCK-IN Some themes store content in theme-specific shortcodes, making it painful to switch later.
    07 · BREAKDOWN

    Breaking Down What You Just Learned

    1

    Themes control presentationYour content stays untouched no matter which theme is active.

    2

    Stick to the repositoryFree, reviewed, and searchable directly from your dashboard.

    3

    Check before installingUpdate date, install count, and reviews reveal more than screenshots.

    4

    Install flowAppearance → Themes → Add New → Preview → Install → Activate.

    5

    Classic vs block themesBlock themes give you full Site Editor control; classic themes rely on the Customizer.

    08 · TRY IT

    Try It Yourself

    EXERCISE

    Search Appearance → Themes for three candidates matching your capstone idea from Day 1. Compare their last-updated dates and active install counts before choosing a favorite.

    09 · TODAY'S PRACTICE

    Install and Activate a Theme

    HANDS-ON EXERCISE

    Setting your site's visual foundation

    Everything you build in Modules 2–4 will sit on top of whatever theme you activate today, so take a few extra minutes here.

    1. Shortlist three themes from the WordPress.org repository related to your capstone idea.
    2. Preview each one and note whether it's a classic or block theme.
    3. Check the update date and review quality for your top pick.
    4. Install and activate your chosen theme.
    5. Visit your site's front end and confirm the new design is live.
    10 · RECAP

    Recap

    THEMES

    Control presentation only — your content is untouched when you switch.

    REPOSITORY

    The safest, free source for beginner-friendly themes.

    EVALUATION

    Check update date, install count, and reviews before installing.

    CLASSIC VS BLOCK

    Block themes unlock full Site Editor control; classic themes use the Customizer.

    11 · SUMMARY

    Key Takeaways

    • Themes control layout, colors, and typography — never your actual content.
    • The WordPress.org repository is the safest place to find a free, reviewed theme.
    • Check a theme's update date, install count, and reviews before installing it.
    • Installing takes just four steps: search, preview, install, activate.
    • Block themes use the Site Editor; classic themes rely on the Customizer instead.
    Course Overview