Hanko, an Obsidian theme: ink on paper, paper on concrete, one red seal. Colours from Sanzo Wada's Dictionary of Color Combinations.
Ink on paper, paper on concrete, and exactly one red mark: the seal.
Hanko is an Obsidian theme named after the Japanese name seal. Almost everything is ink on paper; colour has a job or it stays away. The tones come from Sanzo Wada's A Dictionary of Color Combinations.

cssclasses: seal, on the empty tab and next to the vault name. Swap --hanko-siegel in a snippet to use your own mark.:has() selectors, which can slow Obsidian down in large vaults.| You write | You get |
|---|---|
cssclasses: seal |
the seal at the top right of the note |
cssclasses: focus |
focus mode: only the paragraph with the cursor stays in full ink |
cssclasses: daily-page, weekly-page, monthly-page |
the note title large, with a small label and a red dot above it |
> [!days] with a list of links |
the days of a week as a row of cards |
#evidence/strong, partial, contested, untestable, refuted |
evidence levels as pills: full circle, half circle, dashed ring, dotted ring, slashed ring |
#status/active, waiting, someday, done |
status pills: full circle, clock, dotted ring, check |
- [>] - [<] - [/] - [-] - [?] - [!] |
Bullet Journal task states: migrated, scheduled, in progress, cancelled (grey, never struck through), question, now |
> [!recall], [!review], [!opinion], [!ask], [!correct], [!upfront], [!answer], [!exercise] |
role callouts; recall, upfront and exercise are raised cards because you answer them |
Footnotes turn into a "Sources" list with hairlines and a red bar on the entry you jumped to.
Bases (tables and cards), Kanban (lanes and cards), Canvas, Keep the Rhythm (heatmap in Wada greens), Home Tab (the seal replaces the logo), Readwise (small cover, "View Highlight" as a quiet grey source), Tasks, Iconize, Style Settings.
Install Style Settings to change:
| Light | Dark |
|---|---|
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MIT © 2026 Michael Doroszewski