How To Use Obsidian: Finding Your Best Theme

Obsidian themes can look “fine for months” and then suddenly break—usually because themes and community plugins don’t always agree on how interface elements should be styled. The practical fix is to understand what controls the look (appearance settings, theme choices, and companion “theme settings” plugins) and to pick themes that play nicely with the plugins people actually use.

The starting point is Obsidian’s built-in appearance controls. In Settings → Appearance, users can choose a base color scheme (Dark, Light, or Adapt to system), set an Accent color (the purple accent is the default, but it can be changed), and select fonts. There are separate font controls for the interface (the app’s chrome and UI text) versus the text inside documents. Interface font changes affect headings and UI labels; text font changes affect what’s written in notes. For code-like writing, Obsidian supports monospace fonts, and it will use a preferred monospace font if installed (otherwise it falls back to the system default). Users can also adjust font size and enable quick font adjustment (trackpad pinch or Ctrl + mouse scroll) to zoom without hunting through settings.

Beyond built-in options, Obsidian’s community themes are where most “personality quirks” appear. Themes are installed via Settings → Appearance → Manage, with filters such as “show me dark themes.” The transcript walks through several examples: a theme that subtly changes headings and filenames but doesn’t respect the user’s chosen accent color; a more high-contrast theme that improves readability by clearly separating tabs and the active file; and a theme behavior where readable line length (wrapping) may be toggled off or on depending on the theme’s preferences. Switching between installed themes can be done quickly without reinstalling—using the installed theme picker.

A key theme recommendation is “Minimal,” because it’s designed to reduce visual over-engineering while still supporting many popular plugins. The reason plugin compatibility matters comes down to how styling works: themes act like CSS for Obsidian’s markdown “wrapper,” while plugins bring their own styling expectations. When two plugins use the same conceptual element name (like a heading class) but define it differently, conflicts can cause glitches or unexpected layouts. Minimal’s approach is to accommodate widely used plugins so the overall look stays consistent.

Minimal also introduces a second layer: it requires a companion plugin called “Minimal Theme Settings.” Instead of editing CSS directly, this plugin provides push-button controls for theme details—colors, layout tweaks, and even granular settings for images, tables, iframes, and other embedded content. The tradeoff is dependency: more plugins supporting a theme can make future updates more brittle. The transcript also highlights another robust theme, “Anu Pin” (spelled as “Anin” in places), which includes its own built-in styling options and relies on an additional “Style Settings” plugin to adjust theme colors and integrations.

The takeaway is not to chase endless customization. Dial in a theme that respects core preferences (like accent color and readability), keep the setup as simple as possible, and be prepared for occasional conflicts when themes and plugins evolve independently.