Make variables local to reduce memory use

Makes Page, backgroundFill, foregroundColor and globalTextOptions local to ui.lua. Removes the global variables from horuspre.lua and does the assignment in ui.lua.

Author: klutvott123

src/SCRIPTS/BF/HORUS/horuspre.lua

@@ -12,10 +12,6 @@ PageFiles =
     "gpspids.lua",
 }
 
-backgroundFill = TEXT_BGCOLOR
-foregroundColor = LINE_COLOR
-globalTextOptions = TEXT_COLOR
-
 MenuBox = { x=120, y=100, w=200, x_offset=68, h_line=20, h_offset=6 }
 SaveBox = { x=120, y=100, w=180, x_offset=12, h=60, h_offset=12 }
 NoTelem = {   192,   LCD_H - 28, "No Telemetry", TEXT_COLOR + INVERS + BLINK }

src/SCRIPTS/BF/ui.lua

@@ -29,12 +29,12 @@ local lastRunTS = 0
 local killEnterBreak = 0
 local scrollPixelsY = 0
 
-Page = nil
+local Page = nil
 
-backgroundFill = backgroundFill or ERASE
-foregroundColor = foregroundColor or SOLID
+local backgroundFill = TEXT_BGCOLOR or ERASE
+local foregroundColor = LINE_COLOR or SOLID
 
-globalTextOptions = globalTextOptions or 0
+local globalTextOptions = TEXT_COLOR or 0
 
 local function saveSettings(new)
     if Page.values then