Add LCARS theme (#2399)

novelwriter/assets/themes/lcars.conf

@@ -0,0 +1,77 @@
+[Main]
+name        = LCARS
+mode        = dark
+description = The Next Generation of Star Trek colours
+author      = Veronica Berglyd Olsen
+credit      = Veronica Berglyd Olsen
+url         = https://github.com/vkbo/novelWriter
+license     = CC BY-SA 4.0
+licenseurl  = https://creativecommons.org/licenses/by-sa/4.0/
+
+[Base]
+base    = #101010
+default = #c7c7c7
+faded   = #757575
+red     = #e24d5f
+orange  = #ff9902
+yellow  = #ffdc59
+green   = #54e985
+cyan    = #7ffff2
+blue    = #009cff
+purple  = #8aa5ff
+
+[Project]
+root     = orange
+folder   = yellow
+file     = default
+title    = green
+chapter  = red
+scene    = blue
+note     = yellow
+active   = blue
+inactive = red
+disabled = faded
+
+[Palette]
+window          = base:L180
+windowtext      = default
+base            = base
+alternatebase   = base:L300
+text            = default
+tooltipbase     = yellow:L140
+tooltiptext     = base
+button          = base:L140
+buttontext      = default
+brighttext      = base
+highlight       = purple
+highlightedtext = base
+link            = purple
+linkvisited     = purple
+accent          = orange
+
+[GUI]
+helptext  = blue
+fadedtext = faded
+errortext = red
+
+[Syntax]
+background     = base
+text           = default
+link           = purple
+headertext     = orange
+headertag      = red
+emphasis       = orange
+dialog         = yellow
+altdialog      = green
+note           = purple
+hidden         = faded
+shortcode      = purple
+keyword        = red
+tag            = orange
+value          = orange
+optional       = purple
+spellcheckline = red
+errorline      = red
+replacetag     = purple
+modifier       = red
+texthighlight  = orange:96