change colors to blue-magenta instead of red-green combo

Since red-green color blindness is common, use a blue-magenta combo
instead. Also, make the toggled option bold and change the color of
first line of the menu to green to reduce the amount of blue in the
menu.

src/ui.jl

@@ -94,7 +94,7 @@ const debugcolors = (:nothing, :light_black, :yellow)
 function usage(@nospecialize(view_cmd), annotate_source, optimize, iswarn, hide_type_stable, debuginfo, remarks, with_effects, inline_cost, type_annotations, highlight,
     custom_toggles::Vector{CustomToggle})
     colorize(active_option::Bool, c::Char) = stringify() do io
-        active_option ? printstyled(io, c; color=:green) : printstyled(io, c; color=:red)
+        active_option ? printstyled(io, c; color=:blue) : printstyled(io, c; color=:magenta)
     end
 
     colorize(s::AbstractString; color::Symbol = :cyan) = stringify() do io
@@ -105,7 +105,7 @@ function usage(@nospecialize(view_cmd), annotate_source, optimize, iswarn, hide_
     ioctx = IOContext(io, :color=>true)
 
     println(ioctx,
-        colorize("Select a call to descend into or ↩ to ascend. [q]uit. [b]ookmark."; color=:blue))
+        colorize("Select a call to descend into or ↩ to ascend. [q]uit. [b]ookmark."; color=:green))
     print(ioctx,
         colorize("Toggles"), ": [",
         colorize(iswarn, 'w'), "]arn, [",

test/test_terminal.jl

@@ -41,7 +41,7 @@ end
         @test Cthulhu.default_terminal() isa REPL.Terminals.TTYTerminal
     end
     colorize(active_option::Bool, c::Char) = Cthulhu.stringify() do io
-        active_option ? printstyled(io, c; color=:green) : printstyled(io, c; color=:red)
+        active_option ? printstyled(io, c; bold=true, color=:blue) : printstyled(io, c; color=:magenta)
     end
 
     colorize(s::AbstractString; color::Symbol = :cyan) = Cthulhu.stringify() do io
@@ -80,14 +80,14 @@ end
             @test occursin('[' * colorize(true, 'o') * "]ptimize", lines)
             @test occursin('[' * colorize(true, 'T') * "]yped", lines)
 
-            @test occursin('\n' * colorize("Select a call to descend into or ↩ to ascend. [q]uit. [b]ookmark."; color = :blue), lines)   # beginning of the line
+            @test occursin('\n' * colorize("Select a call to descend into or ↩ to ascend. [q]uit. [b]ookmark."; color = :green), lines)   # beginning of the line
             @test occursin('•', lines)
             write(in, 'o')            # switch to unoptimized
             lines = cread(out)
             @test occursin("invoke simplef(::Float32,::Int32)::Float32", lines)
             @test occursin(r"\(z = a \* a\)\u001B\[\d\dm::Float32\u001B\[39m", lines)
             @test occursin('[' * colorize(false, 'o') * "]ptimize", lines)
-            @test occursin('\n' * colorize("Select a call to descend into or ↩ to ascend. [q]uit. [b]ookmark."; color = :blue), lines)   # beginning of the line
+            @test occursin('\n' * colorize("Select a call to descend into or ↩ to ascend. [q]uit. [b]ookmark."; color = :green), lines)   # beginning of the line
             @test occursin("• %1 = *(::Float32,::Float32)::Float32", lines)
             # Call selection
             write(in, keydict[:down])
@@ -119,7 +119,7 @@ end
             @test occursin(r"z.*::Float32", lines)
             @test occursin(r"\nBody.*Float32", lines)
             @test occursin('[' * colorize(true, 'w') * "]arn", lines)
-            @test occursin('\n' * colorize("Select a call to descend into or ↩ to ascend. [q]uit. [b]ookmark."; color = :blue), lines)   # beginning of the line
+            @test occursin('\n' * colorize("Select a call to descend into or ↩ to ascend. [q]uit. [b]ookmark."; color = :green), lines)   # beginning of the line
             @test occursin("• %1 = *(::Float32,::Float32)::Float32", lines)
             # Source view
             write(in, 'S')