BRANCH SP-1134:
  updated how KeywordFilterElementWdg is called with preferred column names in the following order keywords > name > description > code
  made the hint text and text more legible in dark or silver palette
  slight adjustment to commented out bvr in TextInputWdg
Merge branch 'SP-1134_t' into 4.3

Conflicts:
	src/tactic/ui/input/text_input_wdg.py