Summary
Allow Bot API developers to define a custom color (via HEX code) that appears as a vertical accent bar next to a message. To maintain a clean UI and ensure readability, it is recommended that these colors utilize soft pastel tones.
The Problem
Currently, users must read the text or look for specific emojis to understand the "mood" of a bot's notification. In fast-paced environments (logistics, trading, server monitoring), it is difficult to distinguish between a "Critical Error" and a "Success Notification" at a glance. High-contrast colors can often be jarring; however, the lack of any color coding makes scrolling through a chat inefficient.
The Solution
Introduce a new optional parameter in the sendMessage method, such as accent_color. Developers are encouraged to use pastel variants of standard status colors to provide visual cues without overwhelming the user's focus.
Example Use Cases (Pastel Palette):
Error (Soft Red/Salmon): #FFB3BA — Immediate attention for failed payments or server crashes without visual fatigue.Success (Mint Green): #BFFCC6 — Calm confirmation of completed tasks or deliveries.In Progress (Soft Yellow/Blue): #FFF5BA or #BAE1FF — Indicating a package is in transit or a process is running.Branding: Companies can use muted versions of their brand colors to make their bot's messages instantly recognizable and aesthetically pleasing.
Benefits
Visual Hierarchy: Faster information processing for the user through gentle color coding.Professionalism: Brings Telegram bots closer to professional CLI/DevOps tools with a modern, "Material Design" aesthetic.Accessibility: Helps users quickly categorize messages by color while ensuring the background-to-accent contrast remains easy on the eyes.