From 3e0a4a9da2f60cf5c9b9955983839d9f7823b902 Mon Sep 17 00:00:00 2001
From: Jan Petykiewicz <jan@mpxd.net>
Date: Tue, 27 Feb 2024 22:05:04 -0800
Subject: [PATCH] fix in cases where a category doesn't already exist

---
 k2t.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/k2t.py b/k2t.py
index b9d93c6..5884b61 100644
--- a/k2t.py
+++ b/k2t.py
@@ -76,6 +76,10 @@ def t2k(tfile: str, kfile: str) -> None:
     with open(tfile, 'rb') as ff:
         ttree = tomllib.load(ff)
 
+    ttree.setdefault('layers', [])
+    ttree.setdefault('patterns', [])
+    ttree.setdefault('linestyles', [])
+
     entries = [Entry.from_toml(entry)
                for entry in ttree['layers']]
     patterns = [Pattern.from_toml(pat)