Hi there
I have checked and found that SiuteCRM v8 will have Angular UI and the whole UI will redesign. Considering this I offer to add a RTL layout to version 8 for themes. This way you will increase UX for users who uses it in RTL languages and anyone who wants to create a theme simple need to choose RTL classes or LTR classes without concerns about disordered layout or some times hard-coded parts.