How to Use Stygian.moe Thumbnail Generator | Guide

Before You Start

Open the Thumbnail Generator page and wait for the boss, character, weapon, and thumbnail assets to finish loading.
Have your final team, weapons refinement, and constellation ready.
The export is a 1920x1080 PNG thumbnail.

Start from top to bottom. These control the large text and boss image in the preview.

Title is the main headline. You can change this but the default is Stygian Onslaught. Keep it short because longer titles use a smaller font.
Time is optional text placed next the difficulty, such as 120s. Leave it blank if you do not want a time shown.
Boss can be searched by boss name or nickname. Click a result, or press Enter to select the first result.
Difficulty can be set to Dire or Fearless. The selected difficulty is automatically printed in the thumbnail.

All four slots need a character and a weapon before you can download.

Use Quick Add function to quickly input your team. Examples: C0R1 Flins or C6 Chev R5 Fav. Then click Add or press Enter to automatically fill the slot.
You can also fill each slot manually by searching the character and weapon fields. Press Enter to select the first matching result.
Character and weapon searches have weapon-type compatibility contrainst when both sides of a slot are known. For there will be no mismatch like Mavuika on Favonius Sword.
Set Constellation, Refinement, Character Level, and Weapon Level for each slot. Levels are clamped to valid build limits, and it will be level 90 by default.

The preview updates as you edit and it will look exactly the same as when you choose to export.

The boss image appears on the left.
Weapon cards are shown across the upper row, using R1-R5 labels.
Character cards are shown across the lower row, using C0-C6 labels.
If an asset has not loaded yet, wait a moment before downloading so the rendered PNG matches the preview.

Click Download PNG once the boss and all four character and weapon slots are selected.
The generator renders in your browser, then downloads a file named with the boss and difficulty.
There is a short cooldown after each download.
If the download fails, check whether the page assets loaded properly, then try again.

Leaving a slot empty. The page will not export until every character and weapon slot is filled.
Using a very long title. It still works, but shorter titles are easier to read on YouTube.
Forgetting to update Constellation/Refinements values after Quick Add. Confirm every slot before downloading.
Downloading too quickly after changing assets. Let the preview settle first.