Images should be formatted for dark or light themes

[gradinDotCom]

Example of an image (png) using transparency for no reason - TMC Global Policy Control Plane - visible on this page. Consider scaling images down that are unnecessarily large as well.

Files with graphics in dark background that should be light

• Change graphics in dark background to light for TKO on vSphere Deployment Guide (tko-on-vsphere-with-tanzu.md) #108
• Change graphics in dark background to light for TKO SaaS Integration Deployment Guide (tko-saas-services.md) #109
• Change graphics in dark background to light for TKO on Azure Reference Design (tko-on-aws.md) #110
• Change graphics in dark background to light for TKO on VMC Reference Design (tko-on-vmc-aws.md) #111
• Change graphics in dark background to light for TKO on vSphere with NSX-T (tko-on-vsphere-nsx.md) #112
• Change graphics in dark background to light for TKO on vSphere with Tanzu (tko-on-vsphere-with-tanzu.md) #113
• Change graphics in dark background to light for TKO on vSphere with NSX-ALB (tko-on-vsphere.md) #114