# Seve - @shibo what are these layers?

Channel: #contributor
Source: https://discord.com/channels/1233487248129921135/1554000085250088971
Started: 2026-09-28T05:21:32.835000+00:00
Last activity: 2026-09-28T23:06:40.474000+00:00

## Seve — 2026-09-28T05:21:32.249000+00:00

<@778624824875941908> what are these layers?
Attachment: CleanShot_2026-09-27_at_22.21.18.png — https://community.tscircuit.com/media/1554000084948226112

## shibo — 2026-09-28T20:28:56.498000+00:00

these are the layers used by altium?

## shibo — 2026-09-28T20:29:14.764000+00:00

i see the mid layers are duplicated, other than that looks correct, no?

## Seve — 2026-09-28T22:03:49.309000+00:00

yea duplicated layers, stuff like "top overlay" which i've never heard of

## shibo — 2026-09-28T23:02:52.633000+00:00

tried to match the altium viewer, here is the pr: https://github.com/tscircuit/altiumts/pull/227
Attachment: Screenshot_2026-09-29_at_1.01.40_AM.png — https://community.tscircuit.com/media/1554267179057422497
Attachment: Screenshot_2026-09-29_at_1.01.52_AM.png — https://community.tscircuit.com/media/1554267179342630982
Attachment: Screenshot_2026-09-29_at_1.02.03_AM.png — https://community.tscircuit.com/media/1554267179636097094
Attachment: Screenshot_2026-09-29_at_1.02.21_AM.png — https://community.tscircuit.com/media/1554267179866914868

## Seve — 2026-09-28T23:05:32.681000+00:00

Much better, im afk but go for it

## shibo — 2026-09-28T23:06:40.474000+00:00

<@1067854999889137715> please review