diff --git a/extensions/theme-seti/build/update-icon-theme.js b/extensions/theme-seti/build/update-icon-theme.js
index ed22a1fb3c49faad7eebf57898166f85e0330f7c..318ba18d0efb722c5e82c7d177bf1b742c9cfcf7 100644
--- a/extensions/theme-seti/build/update-icon-theme.js
+++ b/extensions/theme-seti/build/update-icon-theme.js
@@ -309,6 +309,9 @@ exports.update = function () {
 					def2Content[def] = contents[match[2]];
 				}
 
+				if (def === '_default') {
+					continue; // no need to assign default color.
+				}
 				if (pattern[0] === '.') {
 					ext2Def[pattern.substr(1).toLowerCase()] = def;
 				} else {
diff --git a/extensions/theme-seti/icons/vs-seti-icon-theme.json b/extensions/theme-seti/icons/vs-seti-icon-theme.json
index ad4817d51f7efc4fc96da6a9e559221ebee5eb11..5447129b3916b2533cd2b31a56a68bb801855f4a 100644
--- a/extensions/theme-seti/icons/vs-seti-icon-theme.json
+++ b/extensions/theme-seti/icons/vs-seti-icon-theme.json
@@ -1349,7 +1349,6 @@
 		"sty": "_tex_1",
 		"dtx": "_tex_2",
 		"ins": "_tex_3",
-		"txt": "_default",
 		"toml": "_config",
 		"twig": "_twig",
 		"spec.ts": "_typescript_1",
@@ -1640,7 +1639,6 @@
 			"sty": "_tex_1_light",
 			"dtx": "_tex_2_light",
 			"ins": "_tex_3_light",
-			"txt": "_default_light",
 			"toml": "_config_light",
 			"twig": "_twig_light",
 			"spec.ts": "_typescript_1_light",