fix bug on empty colored marking

7 jobs for master in 13 minutes and 51 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Build
passed #3674
darwin
CosmosDarwin

00:01:38

passed #3673
linux
CosmosLinux

00:01:33

passed #3672
cmake-build

00:00:54

passed #3675
modelConvert

00:00:17

 
  Test
passed #3676
from_dist

00:01:57

passed #3677
linux
test

00:08:56

58.9%
 
  Deploy
passed #3678
linux
pages

00:00:11