Merge branch 'tbutton_fix' into 'master'
authorKevin Lamonte <kevin.lamonte@gmail.com>
Mon, 18 Mar 2019 15:04:04 +0000 (15:04 +0000)
committerKevin Lamonte <kevin.lamonte@gmail.com>
Mon, 18 Mar 2019 15:04:04 +0000 (15:04 +0000)
tbutton: allow empty shadow colour

See merge request klamonte/jexer!24


Trivial merge