theme - improve transparency msg formatting with brackets
cleanup. Remove lines with values stored to variables never used

Summary:
  as found with clang static analysis tool.

Reviewers: billiob, raster

Differential Revision: https://phab.enlightenment.org/D1207
Remove some unnesecarry from _smart_show

Reviewers: billiob

Differential Revision: https://phab.enlightenment.org/D1212