--- gllock-git.orig/config.mk	2020-07-17 17:28:26.736921213 +0200
+++ gllock-git.new/config.mk	2020-07-17 17:28:32.860413617 +0200
@@ -10,8 +10,8 @@
 # FRGMNT_SHADER = ascii.fragment.glsl
 # FRGMNT_SHADER = blur.fragment.glsl
 # FRGMNT_SHADER = bokeh.fragment.glsl
-FRGMNT_SHADER = circle.fragment.glsl
-# FRGMNT_SHADER = crt.fragment.glsl
+# FRGMNT_SHADER = circle.fragment.glsl
+FRGMNT_SHADER = crt.fragment.glsl
 # FRGMNT_SHADER = glitch.fragment.glsl
 # FRGMNT_SHADER = radialbokeh.fragment.glsl
 # FRGMNT_SHADER = rain.fragment.glsl