add theme colour change to forum, buyers guide & roundups (+7 squashed commits)

Squashed commits:
[6abf09a] improvement in setting theme colour, settings manus in main
namespace
[e945d4b] fix mute on detail view, refresh button & reformat all files
[5a086bf] placment of text
[b18aeb0] Spelling Fix
[04949c9] rename fix
[329df6f] rename 1
[ace8eac] + option to mute sound & optimised images